The latest blue diamond to hit the auction block certainly lives up to its namesake. The 10.03-carat Mediterranean Blue gem will be the crown jewel at Sotheby’s High Jewelry Auction this May, on ...

Among the most well-known lockets is the one retrieved from The Titanic—not exactly the heart-shaped blue diamond necklace that went by the “Heart of the Ocean” in the famous fictional love ...

Jeweler Harry Winston donated the famous Hope Diamond—the largest-known deep blue diamond in the world ... the collection — the Napoleon Diamond Necklace, the Marie-Louise Diadem, the ...