At debut, the collection, called appropriately, The Vault, consists of 30 one-of-a-kind pieces ranging from platinum cufflinks set with 8.48 carats of tanzanite surrounded by diamonds to a super rare ...

Sotheby's Paris hosted a fine jewelry auction last month, and several sapphire and diamond rings—much like Kate Middleton's royal engagement ring—sold for staggering prices. A 10.68 carat cushion-cut ...

The holidays are a great time to set people up with heirloom pieces—the kind of gifts they’ll use and wear forever, or even pass down later on. If the people on your list are due for some keepsakes, ...

With an elongated cushion-cut diamond gracing her left hand, the Showgirl-turned-bride has placed the stone shape squarely in the spotlight — and here are 13 ways you can wear it, starting at just ...