Harry Winston’s Son Donates Fancy Red Diamond “Winston Red,” to the Smithsonian’s National Museum of Natural History.

Washington, D.C.—The Smithsonian’s National Museum of Natural History is adding 41 natural colored diamonds, including a rare 2.33-carat fancy red, to its gem collection, all courtesy of the son of the “King of Diamonds.”

Ronald Winston, the eldest son of renowned jeweler Harry Winston, has donated a rare 2.33-carat fancy red diamond, known as the “Winston Red,” to the Smithsonian’s National Museum of Natural History. This significant contribution comes 67 years after his father gifted the famous Hope Diamond to the museum in 1958.

The museum announced the donation on Tuesday, revealing that the “Winston Red” and the Winston Fancy Color Diamond Collection—an assemblage of 40 stones in total—will be unveiled to the public on April 1, 2025, in the museum’s Harry Winston Gallery, which also houses the Hope Diamond.

“This ranks among the most significant gifts ever received by the Smithsonian,” said Sant Director Kirk Johnson of the National Museum of Natural History. “The Winston diamonds are unprecedented in their beauty and rarity, and we are thrilled to welcome them as additions to our National Gem Collection. We extend our gratitude to Ronald Winston for making this gift to the nation possible.”

Red diamonds are considered the rarest among colored diamonds, especially those exceeding one carat in weight. The “Winston Red,” with its old mine brilliant cut, suggests it was fashioned before the mid-1900s. A comprehensive study detailing the science and history of this extraordinary diamond is scheduled for publication in the spring 2025 issue of Gems & Gemology, the Gemological Institute of America’s quarterly journal.

This donation not only enriches the Smithsonian’s National Gem Collection but also continues the Winston family’s enduring legacy of sharing exceptional gemstones with the public.

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