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 ...

Once dismissed as ugly ducklings, flawed and unusual stones are increasingly being championed by high-end jewelers.

This rare, fancy vivid blue ... gemstones in the luxury market. Rare blue diamond set to command $20 million as global interest peaks The Mediterranean Blue Diamond is a 10-carat cushion-cut ...

The new design, ethical in its implications and exquisite in cut, has a total of 57 precisely engineered facets for an ...

Figure 1. Left: 18K yellow gold “Flames” ring with 25.19 ct Mexican fire opal. Right: This 18K yellow gold “Spice” ring ...

Sotheby's sale of 110 lots includes important pieces from the Vanderbilt and Wade families, and a private collection in which ...

Metaphors on knowledge, master of craft and creativity underpinned the 110-piece “Virtuosity” collection unveiled Monday in Majorca.

A rare blue ... cut diamond ring of D colour and internally flawless clarity. There was also a 102.60-carat round diamond, D colour and VVS1 clarity; a 40.29-carat radiant-cut fancy light pink ...

Just as the sheer look has been trending in recent months, so have pieces with a barely there effect or peekaboo structure.

Type IIb blue diamonds are extremely rare in nature. When people think of blue diamonds, the Hope diamond immediately springs to mind. The famed 45.52 ct Fancy Deep grayish blue cushion-cut treasure .

In this city of endless museums and galleries, here are some sequestered collections filled with rarities.