Geneva — An exceptionally rare blue diamond went under the hammer in ... The non-round shape of the cut gemstone is what's referred to as "fancy" in the jewelry world, while its color clarity ...

What gives gemstones colors ... When nitrogen is present in pairs or groups within the diamond, it can absorb blue light, ...

Kwiat emerald cut diamond engagement ring with a wide split diamond band in platinum, from $5900, kwiat.com. SHOP A modern twist on the ever-popular halo, the light blue enamel of this ring offers ...

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

The latest blue diamond ... a planning and cutting process that last six months. The diamond’s carefully positioned triangular- and kite- facets help it reflect the light, giving it that classic ...

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 ...

To be sure, the auction house’s High Jewelry Sale, taking place on Tuesday, May 13 in Geneva, will offer up a slew of gems certain ... 5.83-carat oval fancy light blue diamond with heart-shaped ...

considered one of the most important blue diamonds ever discovered. Sotheby’s expects it to be auctioned off at $20 million in May. A 40.29-carat radiant-cut fancy light pink diamond ring ...

De Beers made one of the steepest cuts to its diamond prices in years, as the world’s top producer tries to revive gem sales after the market ground to a halt. The industry almost came to a ...