Diavik, Gahcho Kué, and Ekati—have created a one-of-a-kind pendant with diamonds from each mine, set in a Northern-inspired caribou antler design. This unique pendant, valued at over C$12,000, will be ...

The Aga Khan Emerald, an extremely rare 37-carat emerald and diamond brooch, could fetch up to $8 million at Christie's auction next week in Geneva.