A mysterious black diamond stumped experts for years until one Belgian cutter invented a new machine to shape the 612-carat ...

Queen Elizabeth owned a dazzling brooch cut from the world’s largest diamond. The Cullinan III and IV brooch has an estimated worth of between £50 and £180 million. Elizabeth inherited the diamonds ...

Weighing over 130 carats, the yellow Florentine is among the world’s most valuable diamonds—but for the last 100 years, its ...

With one of the largest inventories of fancy-shaped lab-grown diamonds, KIRA supplies independent jewelers, major retailers, and designers across all carat ranges.