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Gemstone diamond producers. Apollo Diamond (defunct, assets sold in 2011 to Scio Diamond) [1] ALTR Created Diamonds [2] De Beers (Lightbox) [3] Diamond Foundry [4]
Another fine jewelry retailer, Shane Co. offers an impressive selection of engagement rings and wedding bands, but they also have hundreds of beautiful accessories made with precious gemstones.
Shortly thereafter, the institute introduced the "Certified Gemologist" professional designation. [4] Vincent Manson, then Director of Strategic Planning, moved the GIA campus and headquarters to Carlsbad, California. [5] In 2005, an allegation of bribery was made against GIA lab workers, casting doubt on the integrity of diamond grading labs.
[4] [13] The jewelry is then set with the specified gemstones ranging from high quality diamonds to colored stones such as sapphires, rubies, or emeralds. Customers can also change and choose the gemstones and metal directly from the Diamondère website. [14] Diamondère is certified Solitaire Gemological Laboratories. [15]
In March 2007, IGI collaborated with the Tanzanite Foundation to help distribute jewelry certificates using a grading scale called the Tanzanite Quality Scale (TQS), for the gem called Tanzanite, which was discovered in Tanzania in the 1960s. [3] [4]
Lab-grown diamonds of various colors grown by the high-pressure-and-temperature technique. A synthetic diamond or laboratory-grown diamond (LGD), also called a lab-grown diamond, [1] laboratory-created, man-made, artisan-created, artificial, synthetic, or cultured diamond, is a diamond that is produced in a controlled technological process (in contrast to naturally formed diamond, which is ...