Explorers find evidence of a rare green diamond in Finland, with minerals pointing to its origin hidden beneath the ice.
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 ...
The Winston Red Diamond is 2.33 carats and the world’s fifth-largest confirmed red diamond. CREDIT: Photo by Robert Weldon, courtesy of Ronald Winston. Get the Popular Science daily newsletter💡 ...