Blue diamonds are very rare, comprising only about 0.02% of mined diamonds. PRETORIA, South Africa -- Botswana unveiled the largest rare blue diamond ever discovered within its borders: a super rare ...
“The Mediterranean Blue” is 10.3-carat fancy vivid blue diamond with a VS2 clarity grade. It's the highlight of Sotheby's High Jewelry sale in Geneva. Fancy vivid blue diamonds of more than 10 carats ...
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