Discovering Green Semi-Precious Stones: Types and Uses


Intro
The allure of green semi-precious stones captivates collectors, hobbyists, and the curious alike. These gemstones, with their vibrant hues and unique patterns, are often cherished not just for their beauty but for the stories they tell. As we dig into this rich subject, we will uncover the layers that make green stones special, exploring their history, cultural significance, and how they fit into the realm of jewelry making and healing practices. Let’s dive in.
History and Origins
Overview of Collectibles, Rocks, and Fossils
Green semi-precious stones have a history steeped in human culture and commerce. From the ancient Egyptians who adorned themselves with malachite to the indigenous peoples of North America who used jade for tools and ornaments, these stones have played pivotal roles across time and geography. Each piece of semi-precious stone can serve as a witness to history. Think of gemstones like green tourmaline, renowned for its stunning colors, which has been a favorite among jewelers since the 1800s.
Piecing together their histories gives collectors a deeper appreciation for their collections. Understanding not only where a stone comes from but also how it was used or regarded in various societies can enhance its value. For example, the rich green of nephrite jade, prized by the Chinese for millennia, goes far beyond mere aesthetics; it symbolizes purity and nobility.
Historical Significance and Cultural Impact
Green stones have not just adorned jewelry but have also been intertwined with beliefs and rituals. Consider green garnet, often associated with renewal and rejuvenation, is used in talismans by various cultures to bring good fortune and prosperity. Each stone spins a narrative of its culture.
“A gemstone's allure stems not only from its aesthetic appeal but also from the myths and stories it carries through ages.”
Exploring these stories offers modern enthusiasts a chance to connect with the past, understanding how values and beliefs shape the appreciation of these stones.
Identification and Classification
Guide to Identifying Rocks and Fossils
Identifying green semi-precious stones may initially seem daunting due to their variety. Unique characteristics help differentiate them: consider the translucency, luster, and hardness of each stone.
- Malachite: Look for its distinct banding and rich green color. A softer stone, it's often used for carving and inlays.
- Green Amethyst: Also known as prasiolite, this gemstone boasts a notable transparency and often exhibits light green hues.
- Serpentine: Recognizable for its waxy luster and dense composition, serpentine often has spots of black or white.
Common Types and Variations
For collectors, understanding common types of green semi-precious stones lets you appreciate their subtleties:
- Green Tourmaline: Ranges from deep forest green to lighter shades and is known for its striking crystal structure.
- Jade: Encompasses both jadeite and nephrite, both highly sought after for their beauty and historical significance.
- Peridot: Vibrant lime green in color, this stone is known for its associations with light and purity.
By getting to know these stones, collectors can deepen their connection to the earth and its geological history.
Intro to Green Semi-Precious Stones
The allure of green semi-precious stones goes beyond their striking hues; they hold a wealth of meaning, historical significance, and aesthetic appeal. In this section, we aim to unpack the components that make these stones not just beautiful, but also intriguing in their characteristics and background. For collectors and aficionados alike, understanding the nuances of these gems can lead to more informed choices and enriched experiences.
Definition and Characteristics
Green semi-precious stones are naturally occurring minerals that exhibit green hues, often showcased in jewelry, art, and decorative pieces. Their color can arise from various sources, including trace elements like chromium in emerald or iron in jade. These elements give each stone its unique sparkle and depth.
Notably, semi-precious stones differ greatly in appearance, even if they belong to the same color category. For instance, the sheen of polished jade greatly contrasts with the translucent finish of green tourmaline. Different methods of formation also play a role; some are crystallized deep within the Earth’s crust, while others might be formed from sedimentation process outside.
When it comes to physical properties, many of these stones are relatively durable. They typically score between 5 to 8 on the Mohs scale of hardness, making them suitable for everyday wear. However, not all green semi-precious stones are made equal. For example, while peridot can be scratched! with relative ease, tough emeralds withstand more wear and tear.
Distinction from Precious Stones
Understanding the distinction between precious and semi-precious stones is paramount for anyone delving into the realm of gemology. Precious stones, such as diamonds, rubies, sapphires, and emeralds, are relatively rare and consistently sought after for their brilliance and clarity. Hence, they tend to command higher market values.
On the other hand, semi-precious stones enjoy a broader availability and variety, encompassing countless minerals and organic materials. They may lack the hard-cut prestige of their precious counterparts, but this does not undermine their charm or worth. The appeal of green semi-precious stones lies in their diverse colors, patterns, and the personal preferences of collectors.
Unlike precious stones, which have quite standardized criteria for valuation, semi-precious stones often depend more on individual attributes like aesthetics, provenance, and cultural significance. Collectors often find satisfaction in the unique story behind each stone and the ways they connect with different societies and traditions around the world.
"In the eye of a seasoned collector, every green semi-precious stone carries its own tale, waiting to be discovered."
In summary, recognizing the definitions and distinct features of green semi-precious stones allows for a deeper appreciation and understanding of their place in both historical and contemporary contexts. As we move through the article, we will continue to explore the intriguing varieties available, their cultural narratives, and practical implications for jewelers and collectors alike.
Types of Green Semi-Precious Stones
Exploring the myriad types of green semi-precious stones is paramount for collectors and enthusiasts alike. Each stone carries its unique characteristics, historical context, and market relevance. Understanding these elements is not just about appreciation; it’s about making informed choices whether you’re purchasing for collection purposes or personal use.
Emerald
Properties and Composition
Emeralds are famous for their rich green hue, derived from traces of chromium and sometimes vanadium. The distinctive color of emerald is what sets it apart from other stones, making it a highly sought-after choice for jewelry. The stone’s hardness, rated at 7.5 to 8 on the Mohs scale, means it's durable but requires precautions during handling. One particular characteristic is its typical inclusions, known as "jardin," which enhances its charm but can also impact value. For those looking to collect emeralds, understanding these properties is crucial in identifying quality specimens.


Historical Significance
Emeralds have a long-standing place in history, often associated with love and rebirth. Ancient civilizations such as the Egyptians believed emeralds offered protection and promoted fertility. Their historical significance as tokens of wealth and power adds layers to their allure. Many collectors find the connection between emeralds and notable historical figures or events particularly fascinating. Serenading the past gives modern collectors a deeper appreciation for these gems.
Collecting Tips
When it comes to collecting emeralds, it's important to seek stones with minimal inclusions while keeping an eye on color saturation. Purchasing from reputable dealers can avoid the pitfalls of counterfeit stones. Furthermore, a good practice is attending gem shows, where collectors can often acquire direct insights into each stone's provenance. Remember, investing in emeralds isn’t just about buying a pretty stone; it’s about understanding the nuances of what makes a true gem shine.
Jade
Varieties of Jade
Jade primarily comes in two varieties: jadeite and nephrite. Jadeite is rarer and usually carries a higher value, often noted for its vivid green shades. Nephrite, on the other hand, is more common and tends to have a softer, greener hue. Each variety has its own unique feature that appeals to collectors. For instance, jadeite often has more color variations compared to nephrite. For those diving into the world of jade, it's essential to know the differences in quality and value among these varieties.
Cultural Importance
In many Asian cultures, jade symbolizes purity and moral integrity. The ancient Chinese regarded this stone as highly auspicious, using it to create intricate carvings and jewelry. Its cultural significance goes beyond aesthetics, often entwined with rituals and beliefs. Collectors who appreciate jade should be aware of its rich background, as this history only enhances the stone's value. Understanding jade’s cultural roots can also deepen one's appreciation for this breathtaking gem.
Valuation Process
Valuing jade involves examining its color, clarity, and texture, alongside factors like the source of the jade. High-quality jade shines with a translucent glow, making it more desirable. The market is also influenced by trends and demand, so keeping an eye on auction results and sales can inform potential collector purchases. The valuation process closely intertwines with a sound knowledge of the stone's historical and cultural context.
Green Tourmaline
Physical Properties
Green tourmaline, known for its vibrant green colors, is a rare find in nature. It's a type of silicate mineral that showcases stunning hues due to iron content. The physical properties of green tourmaline include its ability to change color in different lighting, adding a layer of intrigue. This stone's durability, rated at 7 to 7.5 on the Mohs scale, makes it a valuable choice for rings and other jewelry.
Locations and Sources
Green tourmaline is found in various locations, including Brazil, the USA, and Africa. Each source yields slightly different shades and qualities. The rarity of this stone greatly depends on the specific source's conditions and the mining methods used. Collectors often seek specific mine origins as part of their collection strategy, understanding that provenance can significantly impact market value.
Uses in Jewelry
Green tourmaline is prized for creating unique pieces of jewelry. Whether it’s in rings, earrings, or necklaces, this gem's natural beauty elevates any design. Its multifaceted color appeal allows it to complement various styles, making it a popular choice among jewelers. However, the stone should be treated gently, as it can be susceptible to scratches or damage if not cared for properly.
Peridot
Natural Occurrences
Peridot is commonly found in volcanic rock, and its notable green color stems from the mineral olivine. Marching through the geological timelines, this stone varied from dark olive green to a lighter hue, depending on its mineral content. Its natural occurrences and geological context are fascinating for collectors who find beauty in the story behind each stone.
Care and Maintenance
Caring for peridot involves specific cleaning methods. Mild soap and water usually suffice, but it's advisable to avoid harsh chemicals, which can tarnish the stone. Given its relative softness, with a Mohs rating of 6 to 7, it requires some attention when storing it, ideally in a fabric-lined box to prevent scratches from harder materials.
Market Demand
The market demand for peridot has seen fluctuations over the years. While it’s not as widely recognized as emerald or jade, its unique properties and affordability make it an attractive choice for newcomers to the world of gemstones. The ways in which peridot fits into current jewelry trends are worth noting, highlighting its rising popularity among modern consumers.
Green Quartz (Prasiolite)
Formation and Coloration
Green quartz, specifically prasiolite, usually forms from heat treatment of amethyst. Its soft green hue is less intense compared to other green stones. The formation and coloration processes can make this stone an intriguing subject for collectors keen on understanding the science behind the beauty. Its relatively accessible price point also appeals to those beginning to explore colored stones.
Market Trends
As more people become conscious of the stones they wear, prasiolite has seen a resurgence in interest. Market trends suggest that the demand is on the rise, especially with designers incorporating it into modern aesthetics. Knowing the market trends helps collectors make wise decisions about purchasing in a competitive landscape.
Applications
Green quartz is commonly used in both high-fashion and everyday pieces. Its range of colors allows for diverse applications in jewelry design. From pendants to beads, prasiolite fits seamlessly into various styles and themes. Understanding its applications can assist collectors in identifying unique pieces worth adding to their collection.
Cultural Significance of Green Semi-Precious Stones
The allure of green semi-precious stones stretches beyond just their aesthetic appeal. They are deeply embedded in the cultural histories of societies around the globe. This section examines their significance across ancient and modern practices, revealing how these stones have captured the imagination and hearts of people throughout time.
In Ancient Civilizations
Egyptian Use of Green Stones


In ancient Egypt, green stones held a unique place in both everyday life and religious practices. Notably, stones like emerald and turquoise were favored for their vibrant colors and believed protective properties. These gemstones were often associated with riches and prosperity, making them popular in the adornment of the pharaohs.
The Egyptians carved these stones into intricate amulets that adorned the tombs of the deceased, as they believed they would provide protection in the afterlife. The green color symbolized regeneration and fertility, tying deeply to agricultural cycles. This characteristic made them a beneficial choice for burial practices and seasonal celebrations.
One distinctive feature of using these stones was their connection to the goddess Hathor, who symbolized fertility and motherhood. The advantage of incorporating green stones was twofold: they not only enhanced the aesthetic value of artifacts but also fortified the spiritual beliefs central to Egyptian culture.
Cultural Symbols in Asia
Across various Asian cultures, green stones resonate profoundly with spirituality and identity. For many in China, jade is cherished not just for its beauty but for its representation of virtue and moral integrity. The reverence for jade can be traced back centuries, where it was often regarded as a protective talisman against misfortune.
Additionally, in regions like India, green stones like emerald are associated with the planet Mercury, believed to empower the wearer with intellect and vitality. This connection makes such stones an attractive choice for individuals seeking to enhance their mental prowess or attract luck.
A notable characteristic of these cultural symbols is their layered meanings, often intertwining various facets of life, such as health, prosperity, and wisdom. This complexity affords them a special status, celebrated in art and jewelry alike, making them versatile yet deeply significant in cultural narratives.
Modern Spiritual and Healing Practices
Green Stones in Crystal Healing
In contemporary practices, green semi-precious stones have found a niche within the realms of spiritual healing and wellness. Crystal healers often extol the virtues of stones like green tourmaline and jade for their purported ability to promote emotional balance and harmony. Advocates of crystal healing believe that these stones can serve as conduits for positive energy, helping to mitigate stress and anxiety.
Their popularity stems from the assertion that green stones resonate with the heart chakra, facilitating openness to love and compassion. This alignment with emotional healing makes them a favorable choice for practitioners and enthusiasts alike. The unique feature of being relatively accessible compared to rare precious stones adds to their charm, allowing more people to integrate these healing practices into their lives.
“In the hands of a skilled healer, seemingly ordinary stones become vessels of extraordinary energy.”
Symbolism in Jewelry
The symbolism held by green semi-precious stones translates seamlessly into the world of jewelry. Many artisans utilize these stones in crafting pieces that signify personal journeys, emotional states, or aspirations. For example, an emerald set into a ring might not just be a striking piece of jewelry, but also symbolize hope, renewal, or the wearer's connection to their cultural heritage.
Moreover, the versatility of these stones allows for a range of designs, from minimalistic to opulent. This adaptability, combined with their emotional significance, makes them highly sought after in contemporary jewelry making. The disadvantage, however, lies in the varying beliefs around their effectiveness, leaving some potential wearers skeptical of the purported meanings.
In summary, green semi-precious stones serve as a bridge between historical significance and modern healing practices, rich with stories and cultural symbols. From protecting the ancients to promoting wellness today, their impact weaves through time, making them an integral part of human culture and expression.
Identifying Authentic Green Semi-Precious Stones
Identifying authentic green semi-precious stones is an essential part of collecting and appreciating these beautiful gems. Knowing how to spot a genuine stone can save collectors from potential pitfalls of imitation or inferior quality. The importance of this topic extends beyond just personal enjoyment; it helps preserve the integrity of the gemstone market, fostering trust among buyers and sellers. For enthusiasts, understanding how to identify these stones adds depth to their knowledge and increases the satisfaction derived from their collections.
Physical Tests
Hardness Tests
Hardness tests are a straightforward yet effective method for determining the authenticity of a green semi-precious stone. The key characteristic of this test is the ability of a stone to resist scratches, a property often measured using the Mohs scale. This scale rates minerals from 1 (talc) to 10 (diamond), helping you gauge a stone's hardness based on its position on the scale. This is a beneficial approach because most authentic semi-precious stones rank between 5 and 7. If a stone easily scratches against a common object like a copper penny, it may not be genuine.
A unique feature of hardness tests is their accessibility. Collectors often don't need specialized equipment, just a few household items for comparison. However, this method does come with its disadvantages; it can sometimes be inconclusive, as some authentic stones may have similar hardness rankings. Nevertheless, it remains a staple technique for initial identification.
Color Inspection
Color inspection is another fundamental aspect of identifying authentic green semi-precious stones. The rich hues of these stones often play a major role in their attractiveness and value. Key to this method is an understanding of how the stone's color interacts with light and how it appears in natural daylight versus artificial light. A genuine stone typically exhibits a depth and consistency of color that is hard to replicate in imitations.
The unique feature of color inspection lies in its ability to reveal information about the stone's treatment history. For instance, some stones may be dyed for enhanced vibrancy, which is a red flag for collectors interested in authenticity. However, this method isn't foolproof; some high-quality imitations can closely mimic the color of authentic stones. Therefore, it’s often used as a preliminary method alongside other tests for a more reliable identification process.
Professional Appraisals
When in doubt, professional appraisals offer a high level of assurance in identifying authentic green semi-precious stones. Skilled gemologists utilize a variety of advanced techniques to evaluate the stones, including optical tests and chemical analysis. This option provides an objective viewpoint that can help collectors understand the true value and characteristics of their pieces.
Furthermore, obtaining a professional appraisal can be beneficial when it comes to insurance and resale. Collectors benefit from accurate documentation of the stone's value, ensuring they are well-protected against potential losses. In today’s market, where exquisite stones can be deceptively imitated, having a certified appraisal is not just a nice-to-have; it’s a vital step in preserving one’s investment.
Maintenance and Care
Taking care of green semi-precious stones is akin to tending to a delicate garden. These stones are not just pretty decor; they hold value in both tangible and sentimental ways. Proper maintenance ensures that their natural beauty shines through while also preserving their worth over time. Collectors and enthusiasts alike should pay attention to how these gems are cleaned, stored, and displayed to maintain their allure for years to come.
Cleaning Techniques
Suitable Cleaners
When it comes to cleaning green semi-precious stones, the choice of cleaner is critical. Many collectors prefer to use a soft, lint-free cloth dampened with plain water or a mild soap solution. This simple approach highlights the stone's natural luster without stripping away its protective qualities. Avoiding harsh chemicals is essential; they can cause discoloration or damage the surface.
- Key Characteristics: Soft and non-abrasive, suitable for most stones.
- Why it's beneficial: This method removes dirt and oils without risking harm to the stone.
- Unique Feature: The tailored gentleness of these cleaners maintains the integrity of the stone's surface.
- Advantages: Affordable, easy to use, minimal preparation required.
- Disadvantages: Limited effectiveness against heavy grime or stains.
Avoiding Damage


Preventing damage to these stones is just as important as cleaning them. Simple practices can shield your precious gems from harm. For instance, removing rings or bracelets while doing manual work can save them from scratches and impacts that we often overlook in the hustle and bustle of daily life. The key characteristic here is vigilance; a little caution goes a long way.
- Why it's beneficial: Regularly handling stones with care prevents potential shatters or scratches.
- Unique Feature: Awareness of surroundings fosters a proactive approach to stone protection.
- Advantages: Saves costly repairs and keeps the gems looking pristine.
- Disadvantages: Requires discipline and mindful behavior during activities.
Store and Display
Optimal Conditions
Storing green semi-precious stones under the right conditions ensures their longevity. A cool, dry place away from direct sunlight is ideal. Too much humidity can lead to mold, while sun exposure can fade their vibrant colors. Using individual cloth pouches or cases can also prevent stones from scratching against one another—an often overlooked but important detail in stone care.
- Key Characteristics: Reflects a harmonious balance between temperature and light.
- Why it's beneficial: Prevents degradation and maintains the gem's inherent properties.
- Unique Feature: Dedicated storage promotes easy access while minimizing risk.
- Advantages: Extended lifespan of the gems and sustained aesthetic appeal.
- Disadvantages: Requires a conscious effort to maintain optimal conditions.
Preventing Scratches
Scratches can mar the beauty of any green semi-precious stone, making the practice of prevention crucial. This can be achieved by strategically storing stones apart and using padding within display cases. A simple rule of thumb: like stones should not be stored together. For example, harder stones can scratch softer ones if they are not properly segregated.
- Key Characteristics: Requires discerning attention to stone hardness and storage methods.
- Why it's beneficial: Keeps the surface of the stones unblemished, enhancing their visual appeal.
- Unique Feature: Tailored storage solutions cater to a variety of stone types and their needs.
- Advantages: Saves you from the headache of potential restoration jobs or diminished value.
- Disadvantages: Additional effort is needed to properly manage storage arrangements.
Staying proactive about the maintenance and care of green semi-precious stones not only reflects dedication but also elevates their aesthetic and monetary value. The more attention to detail you give these stones, the more they will reward you with their lasting beauty.
Market Trends and Valuation
Understanding the dynamics of market trends and valuation is vital for collectors and enthusiasts alike. Market trends in the world of green semi-precious stones reveal not only their current worth but also hint at future potential. Valuation plays a crucial role, as it determines the price a collector might pay or the selling price one might expect should they decide to part with their prized pieces. This section will delve into the various factors influencing the value of these stones, as well as future trends that could shape their market position.
Value Determination Factors
Rarity and Demand
Rarity plays a significant role in the valuation of green semi-precious stones. When a stone is scarce, it tends to command a higher price in the market. For instance, certain varieties of jade may be considered particularly rare and thus more desirable to collectors. This demand isn’t just about scarcity; it's also rooted in cultural significance and historical context. A notable aspect of rarity is how it can drive demand, especially among collectors who may believe owning such a piece elevates their collection to something extraordinary.
However, it’s important to note that rarity can be a double-edged sword. While it enriches appeal, it can also limit accessibility. Factors like geographical availability can influence how a stone is perceived in the market, illustrating why some stones become more coveted than others. In short, the key characteristic of rarity is its ability to create a premium market, but this premium comes with the challenge of finding a balance between desirability and attainability.
Quality of Cut and Clarity
Quality of cut and clarity are pivotal elements affecting the valuation of green semi-precious stones. A well-cut stone reflects light beautifully, showcasing its inner brilliance. For buyers, this aspect can be an indicator of skill and craftsmanship in jewelry. Clarity, on the other hand, refers to the stone's transparency and the presence of inclusions. Stones with fewer inclusions tend to be more valued, as they appear cleaner and more appealing.
Notably, the quality of cut also impacts how a stone fits within contemporary designs. A masterfully cut green tourmaline, for example, can enhance the overall stature of a piece of jewelry, making it a popular choice among both jewelers and buyers. This emphasis on quality promotes a higher valuation but risks overshadowing lesser-known stones that may offer unique beauty despite minor imperfections.
Future Market Potential
Emerging Trends
The market for green semi-precious stones is witnessing a metamorphosis influenced by emerging trends. Eco-conscious consumers are leaning towards ethically sourced materials. There's a growing interest in sustainable practices in both mining and jewelry manufacturing. This trend is encouraging artisans to take extra care in sourcing responsibly and transparently.
Emerging designs incorporating these stones into eco-friendly jewelry can captivate a new generation of buyers. The potential for increased sales is clear, especially with the rise of personalized experiences in jewelry making. Moreover, trends in technology and e-commerce are shifting how these stones are marketed and sold. The convenience of online shopping opens doors that were previously closed, allowing collectors to find specialized pieces without geographical limitations.
Investment Considerations
Investing in green semi-precious stones can be an intriguing venture, but it comes with its set of considerations. Market fluctuations are not uncommon; thus, potential buyers should stay informed about market sounds and trends. Understanding which stones hold their value over time is key for those aiming for long-term investments.
Another aspect to consider is the knowledgeable appraisal of the stones. As market interest grows, the need for reputable appraisers becomes more critical. A well-founded appraisal can reassure buyers about their investment and guide them toward a more informed purchasing decision. Furthermore, while many view green stones as a safer investment route compared to traditional stocks or bonds, understanding their performance can provide insights into not only appreciation but also liquidity in the future.
Overall, the trends in the market and valuation bring a blend of opportunity and complexity. Awareness of these aspects should enhance a collector's approach, turning the journey of collecting into a rewarding experience.
Finale
The topic of green semi-precious stones holds significant importance within the broader context of both geological appreciation and cultural history. As we have explored throughout this article, these stones are not merely decorative artifacts; they encapsulate a wealth of attributes and stories that span centuries and continents. Each green stone, whether it be emerald, jade, or peridot, brings its unique characteristics, and understanding them deepens our connection to both the earth and human creativity.
Green semi-precious stones serve as both companions and symbols in various cultures. Their meanings can range from tranquility and balance to prosperity and protection.
The Enduring Allure of Green Stones
Green stones have an undeniable charm that seems to captivate collectors and casual enthusiasts alike. The lush green hues represent nature's vitality, appealing to our innate instincts for growth and renewal. From the misty greens of jade to the vibrant tones of green tourmaline, each variety presents a different facet of beauty and significance.
Consider the rich history intertwined with these stones. For instance, jade has long been revered in Asian cultures, symbolizing not only beauty but also virtue and moral integrity. It’s clear that the allure of these stones extends beyond their aesthetic; they embody values cherished by civilizations through the ages.
Final Thoughts on Appreciation
As we conclude our journey, it's essential to reflect on the value of appreciation for green semi-precious stones. Collecting these gems isn't just about acquisition; it's about recognizing their stories, their origins, and the skills involved in bringing them to form. Whether engaging in crystal healing or simply adorning oneself in jewelry, understanding the art and science behind these stones enriches the experience.
Investing in green semi-precious stones can also be seen as a commitment to sustainability and ethical sourcing practices. Many collectors today are increasingly aware of these aspects, advocating for stones that are responsibly sourced and reflecting a consciousness toward the environment.
Through this article, it is hoped that readers gain a richer understanding of green semi-precious stones, igniting passion and curiosity. As these stones navigate through time and culture, they will continue to fascinate and inspire generations to come.
For further reading on the history and uses of semi-precious stones, you may find the following resources helpful:
- Wikipedia on Semi-Precious Stones
- Britannica's Guide to Gemstones
- Discussion on Reddit about Rock Collecting
- Gemological Institute of America to learn about gem identification and grading.