The (IGI) International Gemmological Institute in Hong Kong has certified synthetic laboratory grown diamond weighing 10.02.
The synthetic diamond is produced by Russian company, New Diamond Technology based in St. Petersburg.
IGI laboratory said the 10 carat synthetic diamond has a unique technology behind synthesizing processes, significantly more advanced than other laboratory created diamonds.
The size and exceptional colour are comparable with the best of the natural diamonds.
New Diamond Technology hopes to unveil the stone at the JCK Vegas show.