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Fine Jewelry University Articles matching: “Blue sapphire 10kt”
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Fine Jewelry University
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Gem in the Spotlight: Jade
…polish. Nephrite is commonly found in a darker olive green color but can also be very light green, orangey-red, black, and yellowish green. Jadeite can come in many different colors including pink, purple (often called lavender jade), blue, black, white, and the most valuable/desirable color: a vibrant green. The finest of all green jadeite colors is a saturated emerald green that is almost transparent, and it is called “Imperial Jade.” Jade is one of the top selling …
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How Are Lab Grown Diamonds Made?
… lab grown diamonds. For decades, manufacturers of synthetic gemstones tried growing diamonds like they grew rubies, sapphires, and emeralds. It failed. Then they had the idea to grow diamonds in the lab like they grew in nature. High … gems. This is because even the smallest presence of nitrogen or boron during the process can result in a yellow or blue color respectively. Both HPHT and CVD diamonds tend to exhibit strong and unusual fluorescence characteristics when …
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Gem in the Spotlight: Pearl
… Pearls: Also known as black pearls, Tahitian pearls are a type of saltwater pearl that are grown primarily in French Polynesia. They are known for their dark, rich colors, which range from dark green and gray to deep shades of blue and black. Tahitian pearls are generally large with an average size of 9mm to 18mm, and they commonly have baroque or irregular shapes. South Sea Pearls: Only a small percentage of oysters are able to produce these large, high-quality pearls…
