(IDEX Online) - The historic 10.38-carat Marie-Therese pink diamond smashed its pre-sale estimate and sold for a record $14m ...

A contemporary take on Jean Schlumberger's beloved brooch, the 18k white gold watch features a miniature reinterpretation of ...

Christie’s New York Magnificent Jewels auction totaled $87.7 million with 100% of the lots sold, a record for a various-owner ...

The heirloom in question, lot 44, which sold for $13.98 million, is a diamond and blackened platinum ring featuring a fancy ...

Diamonds, rare colored gems and signed jewels from important private collections fueled Sotheby’s High Jewelry auction in New ...

This tiny stone is an anomaly of geology. It is the rarest kind of diamond — graded “Fancy red,” pure and unmodified by other ...