“This is the most famous blue diamond that's coming up for sale for the first time ever in over 100 years.” :: The boron in this diamond gives it its blue color and also makes it electro-conductive ...

The rare diamond went up for auction in Geneva on Tuesday One of the world’s rarest blue diamonds has sold for nearly $44 million at an auction. The “Bleu Royal” diamond set upon a ring went under the ...

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A 3.13-carat fancy vivid blue diamond will lead Bonhams New York Jewels auction on December 8. The gem, mounted on a ring, boasts VVS1 clarity with the potential to be internally flawless. Its ...

Sotheby's Geneva auction will feature the stunning 10-carat "Mediterranean Blue Diamond," estimated to fetch $20 million. This rare, fancy vivid blue diamond, sourced from South Africa, is captivating ...

Blue diamonds are considered the rarest and most desired on the market. A particularly big one sold for millions at Sotheby’s on Thursday, scraping just beneath the surface of its $26 million ...