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Hace 6 días · Emerald is the green to bluish green variety of beryl, a mineral species that also includes aquamarine as well as beryls in other colors. Gem experts differ on the degree of green that makes one stone an emerald and another stone a less-expensive green beryl. Some people in the trade tend to give the name emerald to any green beryl colored by ...
23 de may. de 2024 · Gemological Institute of America (GIA. ) GIA ® is the leading source in knowledge and education for diamonds and gemstones. The nonprofit organization has made countless innovations in the field of gemology and continues to educate and enable jewelers of the future. Browse Stuller's inventory of GIA products.
16 de may. de 2024 · Active in the jewelry industry since 2016, Elliot studied at The Gemological Institute of America in Carlsbad and began as a Staff Gemologist for Leo Hamel Fine Jewelers. Elliot apprenticed under Thom Underwood and began performing appraisals for San Diego Gemological Laboratory upon Thom’s retirement.
Hace 2 días · Amethyst is the purple variety of the quartz mineral species. It’s the gem that’s most commonly associated with the color purple, even though there are other purple gems such as sapphire and tanzanite. Its purple color can be cool and bluish, or a reddish purple that’s sometimes referred to as “raspberry.”. Most people think of ...
22 de may. de 2024 · The Gemological Institute of America (GIA) is a philanthropic establishment, founded in 1931 committed to research and training in the field of gemology and the adornments expressions and situated in Carlsbad, California.
22 de may. de 2024 · An independent nonprofit organization, GIA (Gemological Institute of America), established in 1931, is recognized as the world’s foremost authority in gemology. GIA invented the famous 4Cs of Color, Clarity, Cut and Carat Weight and, in 1953, created the International Diamond Grading System™ which is recognized around the world as the standard for diamond quality.
Hace 1 día · The GIA Clarity Scale has 6 categories, some of which are divided for a total of 11 specific grades. Many inclusions and blemishes are too tiny to be seen by anyone other than a trained diamond grader. To the naked eye, a VS1 and an SI2 diamond may look exactly the same, but these diamonds are quite different in terms of overall quality.
