Thursday 30th April 2009

From rough to a polished vivid blue gem

Since the first diamonds were discovered in the Gauteng province of Transvaal in South Africa over a century ago, the Cullinan mine has yielded some of the most spectacular diamonds ever to be unearthed. Last year, a 26,58 ct blue diamond rough was uncovered there, which has now been transformed into a cushion-shaped 7,03 ct internally flawless fancy vivid blue gem, the highest colour grading. Published in Jewellery, Geneva May 2009
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