Natural red diamonds are among the rarest gemstones on Earth – and the Winston Red Diamond is a dazzling example. The diamond is defined as having a “Fancy red” color grade, meaning it’s ...

Laid out like an orchestra in a quiet gallery room, 40 colorful gems have one of the planet’s most distinguished conductors: a red diamond, 2.33 of the rarest carats in the world, shining like a ...

Follow Author Feb 20, 2025, 09:09am ESTFeb 20, 2025, 01:40pm EST The 2.33-carat Winston Red Diamond, one of the finest fancy red diamonds in the world Photo by Robert Weldon, courtesy of Ronald ...

The Winston Red Diamond is 2.33 carats, among the largest to have the “Fancy red” color grade from the Gemological Institute of America. Insiders believe fewer than one in 25 million diamonds ...

While the latter come in all hues, red seems to be the rarest. Fewer than 30 or so fancy red diamonds larger than one carat exist in the public record, Farfan says.