Color diamonds are more valuable and desirable and a better investment

In 1993, Eyal Cohen started his career as a diamond cutter, sitting by his father’s side as an apprentice. 4 years later, he was recruited by a jewelry firm, where he learned to appreciate natural colored diamonds. In 2003, Eyal opened his own company...

17 september 2018

Debate on the main issues affecting the diamond business is absolutely critical - Ernie Blom

Having taken part in the fruitful discussions with the world leaders at the Asian Summit held recently in Vladivostok, Ernie Blom, President, World Federation of Diamond Bourses (WFDB) now looks forward to taking the worthy inputs received at...

10 september 2018

Reflecting the nature of the industry, US jewellery market is significantly seasonal with great ‘ebb and flow’ in demand, opines Vin Lee

Vin Lee, CEO of Beverly Hills-based Grand Metropolitan, a privately-held luxury goods holding company had migrated from Canada as a child. And one can see that it did not take him long to ascend the US luxury world, establishing himself as a formidable...

27 august 2018

Vladimir Zboykov: New times have come for jewelers

How a personal collection of minerals was thrown on the scrap-heap, who is behind the destruction of gemstone consumption culture in Russia and why jewelers will soon have to choose between business and prison – all this was told to Rough & Polished...

20 august 2018

Changing preconceptions in the diamond and financial markets

Eli Avidar is a man on the move…literally. In April, the former Israeli diplomat stepped away from the CEO’s office at the Israel Diamond Exchange, a position he had held for more than two years, and from the Israel Diamond Institute, where he had been...

13 august 2018

GIA tests large pinkish orange CVD synthetic diamond

06 july 2018
A pinkish orange CVD synthetic diamond, submitted by Unique Lab Grown Diamond Inc. in New York, was recently tested by the Gemological Institute of America (GIA ). The stone “showed some outstanding gemological features”, according to the lab notes of the institute.

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Image credit: GIA


This square shaped, fancy Intense pinkish orange type IIa diamond weighed 5.01 ct and is claimed to be the largest pink synthetic stone in the world. The color was distributed evenly throughout. The stone is believed not to be treated by HPHT annealing after its growth for color improvement, said GIA.
 “The combination of size, color, and clarity made this the most remarkable CVD synthetic diamond GIA has tested so far,” GIA noted.

Victoria Quiri, Rough&Polished