Fifteen pieces from the woman considered one of the 20th century’s greatest jewelers will be up for auction this December.

Fancy colored diamonds, colored gems and signed jewels will be featured at New York auctions from Phillips and Bonhams in ...

A Cartier Art Deco brooch and a JAR necklace are among the pieces from Mica Ertegun’s estate to be sold at Christie’s next ...

Royal jewels, historic pieces and creations by Cartier and Van Cleef & Arpels dominated at the recently held auctions in ...

A 5.7-carat fancy intense blue diamond ring could fetch $6 million to $8 million during the Christie's Magnificent Jewels ...