As the head of jewelry in Asia for British auction house Bonhams, Graeme Thompson is used to handling beautiful diamonds on a daily basis. Yet he’s only ever held a red diamond once, about five years ...

The Winston Red Diamond will be unveiled April 1, along with the Winston Fancy Color Diamond Collection. The diamonds have been donated by Ronald Winston, son of well-known jeweler and gem collector ...

The Smithsonian's National Museum of Natural History acquired one of the world's rarest gemstones.Natural red diamonds are some of the rarest gems on Earth, and the Winston Red Diamond is exceptional ...

When he first saw the storied 5.05-carat red diamond – a gem colored “as if a drop of blood fell upon the hand of the cutter” – Douglas Kazanjian thought it was heaven-sent. Kazanjian, head of a ...

In the fall of 2016, workers at Rio Tinto’s Argyle mine in Western Australia discovered an extraordinary 4.38-carat rough diamond that appeared to glow like a red ember. Next month, a radiant-cut gem ...

A super rare diamond ring of purplish-red hue of 1.05 carats was recently sold for a whopping price. It set a world record at the famous Christie’s auction in Geneva as it was sold at a whopping price ...

Prospective buyers in Hong Kong are preparing to be dazzled by a first glimpse of one of the largest and “most coveted” red diamonds ever discovered. The Argyle Everglow is a 2.11 carat red diamond ...