A colored diamond and diamond brooch. Photo Christie's Image Ltd 2014 Designed as a circular-cut colored diamond and diamond wreath, with baguette-cut diamond detail, mounted in platinum. Estimate $20,000 – $30,000 With report 1152783180 dated 23 December...

Coloured Diamond and Diamond 'Owl' Ring. Photo courtesy Tiancheng International The ring designed as a form of an owl set with a brilliant - cut fancy vivid orangy yellow diamond and a fancy intense green - yellow diamond as eyes weighing 0.81 and 0.82...

A rare fancy intense green-yellow 14.20 carats diamond ring Set with a cut-cornered modified square-cut fancy intense green-yellow diamond, weighing approximately 14.20 carats, the gallery and shoulders decorated with pavé-set yellow diamonds, to the...