Lot 1691. Exquisite Fancy Red Diamond, Pink Diamond and Diamond Brooch. Estimate 3,500,000 — 4,000,000 HKD . Photo: Sotheby's Designed as three flowers, each set with a cut-cornered rectangular modified brilliant-cut fancy red diamond weighing 0.40, 0.39...

A cut-cornered rectangular-cut fancy red diamond and diamond ring. Photo Christie's Image Ltd 2014 Set with a cut-cornered rectangular-cut fancy red diamond, weighing approximately 0.69 carat, within a two-tiered circular-cut diamond surround, to the...

Among the exceptionally rare coloured diamonds on display in Tokyo, Japan, as part of the Argyle Pink Diamonds Tender 2013 are, left to right, the Argyle Aurelia, Argyle Phoenix, Argyle Seraphina and Argyle Celestial diamonds. The world’s most exclusive...

A rare coloured diamond ring. Photo Christie's Image Ltd 2013 Set with a fancy red rectangular-cut diamond, weighing approximately 1.92 carat, flanked on either side with half-moon diamond, to the pavé-set diamond shoulders and platinum hoop, ring size...

Exceptionally and Extremely Rare Fancy Red diamond ring Claw-set with a modified rectangular-cut fancy red diamond weighing 1.92 carats, flanked by half moon-shaped diamonds, the shank partially set with brilliant-cut stones, mounted in platinum, size...