The Smithsonian’s National Museum of Natural History has acquired the 2.33-carat "Winston Red Diamond," as part of the “Winston Fancy Color Diamond Collection.” ...

The Hope Diamond at the Smithsonian’s National Museum of Natural History is getting a dazzling display case neighbor — and a few extra friends.

Natural diamonds have been a symbol of love and luxury for over 3,000 years, with the four Cs (color, clarity, cut, and carat ...