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Color grading of diamonds was performed as a step of sorting rough diamonds for sale by the London Diamond Syndicate. As the diamond trade developed, early diamond grades were introduced. Without any co-operative development, these early grading systems lacked standard nomenclature and consistency. Some early grading scales were; I, II, III; A, AA, AAA; A, B, C. Numerous terms
Using these methods, Gemesis produced high-quality colorless and fancy color diamonds that were offered for sale at 20–30% lower prices than mined natural diamonds of similar quality (and, from some suppliers, lower prices than that). [6] By about 2010, Gemesis was the principal producer of gem quality lab created diamonds and jewelry.
Leibish & Company is a multinational, family-owned online diamond dealer and jewelry retailer, specializing in fancy color diamonds and rare gemstones.Founded in 1979 as a diamond broker, the company operates out of the Israel Diamond Exchange and has marketed exclusively through an online portal since 1995.
For a more fashion-forward piece, this diamond ring includes a thick 18k yellow gold band with a “floating” ring of baguette-cut diamonds above it. $1,990 at Brilliant Earth Shane Co.
The Fancy Color Research Foundation was founded in 2005 when the organization began to collect data for fancy color diamond wholesale market prices. Data was collected for nearly ten years before the first quarterly update of the Fancy Color Diamond Index (FCDI) in January 2015. [ 3 ]
24.78-carat (4.956 g) A 24.78-carat Fancy Intense Pink diamond and, until the sale of the Sweet Josephine diamond in November 2015, it was the most expensive jewel ever sold at auction. Previously owned by Harry Winston and an unnamed private collector, and bought by Laurence Graff (November 2010). [31] —