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

As a result, it makes sense that this commitment is marked with an engagement ring. And while every proposal is unique and ...

Although Claire-Laurence Mestrallet, head of jewellery at Adam’s, must still be reeling from the sale of the Kashmir sapphire ...

Sotheby's sale of 110 lots includes important pieces from the Vanderbilt and Wade families, and a private collection in which their jewels document a lifelong love affair ...

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

Tapping into a high-growth sector, these lab-grown diamond stocks could be tomorrow’s portfolio winners. Are you watching ...

The Marie-Thérèse Pink, thought to have belonged to Marie Antoinette, was auctioned by Christie’s in New York.

The Marie-Thérèse purple-pink diamond, a 10.38 carat stunner, fetched a record $13.98 million at Christie's Magnificent ...

While it may look like a blazing red ruby, the 2.33-carat Winston Red Diamond is just that—a diamond. One of the rarest ...

Update: The carved emerald just sold for $6.2 million at auction, over double the original estimate. The original story on ...

Before her failed effort to flee Paris in 1791, Marie Antoinette handed a diamond to her loyal hairdresser. It's now ...