Spectrum Awards spotlight not only contemporary design but the finest gemstones on the planet. Here are emeralds, rubies and moonstones like you've never seen them - and a few gems you probably didn't know existed.
Diamonds brought big prices at Christie’s New York jewelry sale today and the much publicized 32-carat Annenberg Diamond did not disappoint, selling for $7,698,500, more than twice the low estimate. At $240,000 per carat, the Annenberg sets the world record per-carat price for a colorless diamond, according to Christie’s. “For three and a half hours,...