A striking colored-diamond ring is the star of Christie’s upcoming jewelry sale. The 5.7-carat fancy intense blue diamond ring leads the auction house’s Magnificent Jewels auction with an ...
Algordanza's prices start at $3,000 for a 0.3 carat diamond. Martoia said the average order is about 0.4 to 0.5 carat, though US customers usually request bigger, 0.8-carat diamonds. But ...
The 1,111-carat stone was recovered by Canadian firm Lucara Diamond Corp in Botswana two years ago. Lucara said the price was an improvement ... first formed between 2.5 and three billion years ...