Blue Diamonds: Colored by boron at extreme depths
Sotheby's Dubai Unveils A Rare Diamond Valued At Over $48M
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News - Gem Legends & Luminaries
Rare blue diamond valued at more than $48 million goes on display at Sotheby's Dubai
$48 Million Rare Blue Diamond in Dubai
blue diamond – The Diamond Certification Laboratory of Australia (DCLA)
BigDiamondsUSA Inc.
blue diamond – The Diamond Certification Laboratory of Australia (DCLA)
Why is it expensive: The De Beers Cullinan Blue Diamond worth $48M
The De Beers Cullinan Blue Diamond Could Fetch $48M At Auction – Robb Report
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