This Extremely Rare 10-Carat Blue Diamond Could Fetch $20 Million at Auction
The extremely rare, 10-carat Mediterranean Blue diamond could fetch a whopping $20 million at Sotheby's High Jewelry auction ...
Jeweller Magazine5 天
Rare blue diamond expected to return $30 million
A stunning blue fancy colour diamond is expected to impress collectors at an upcoming sale, entering the auction with an eye-popping pre-sale estimate.