With over 30 years of experience assessing diamonds and gemstones, our GIA certified graduate gemologists have seen it all!
Feel free to bring in any size diamond, emerald, ruby, sapphire, or other gemstones. You’ll see our attention to detail is incomparable, and our knowledge of the gemstone market allows U.S. Coins & Jewelry to get you the most cash for your stones.
Understanding GemstonesGemstones such as rubies, sapphires, and emeralds are naturally occurring mineral crystals that have been cut and then polished. Since ancient times, gemstones and the jewelry they adorn have been a part of human society. Throughout history, gemstones and jewelry have been used for signifying wealth and status. Today, global urbanization means that the popularity of gemstones continues to increase. With the emergence of wealthy middle classes in rapidly growing economies, there is a huge demand for gemstones, but regulation has struggled to keep up with this demand. As a result, the sale of fraudulent and fake gemstones has skyrocketed, and there is a need for an effective and fast way of determining authenticity. Our team is trained to evaluate stones. | How are Gemstones Identified?Gemologists make use of tools including jeweler’s microscopes, loupes, or measurement of the refractive index in order to identify synthetic gemstones or those that have been improved. A jeweler’s loupe is a magnifying device that allows inclusions and blemishes to be seen. Microscopes offer further magnification and can be employed for detecting heat treatments and various other clarity enhancements. However, these techniques all need a trained gemologist to perform the analysis, and the decision always includes human error. Furthermore, synthetic gems and enhancements are becoming immensely sophisticated, making standard methods unreliable. As a result, sophisticated methods of gemstone analysis, which are borrowed from analytical chemistry, are indeed becoming popular. |
Looking for a local trustworthy buyer to sell your valuables? We buy far more than just gold, silver, diamonds, and Rolex watches.
We also buy scrap gold, platinum, palladium, and other precious metals, coins, coin collections, diamonds and gemstones, jewelry of all types, luxury watches, historical documents, fine art and memorabilia including sports memorabilia, comic books, and select other collectibles.
U.S. Coins and Jewelry offers the highest payout for your bullion, coins, diamonds, jewelry and more.
Our verbal appraisals are free. You are under no obligation to sell your collection to us. We value the opportunity to view your collection and help you put a value on your items.
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