Lot 1935. A suite of diamond jewellery, by Gimel. HK$4,500,000 – HK$6,500,000 ($580,000-800,000) . Price realised HKD 6,640,000. © Christie's Image Ltd 2015 Comprising a knife edge-link necklace, set with twenty-four brilliant-cut diamonds weighing from...

Lot 2054. An important diamond necklace, by Cartier. Estimate HK$5,000,000 – HK$8,000,000($600,000-800,000) . Price realised HKD 5,800,000. © Christie's Image Ltd 2015 Designed as a line of marquise and brilliant-cut diamonds, the front suspending a series...

Cartier Snake Bracelet - platinum, one 53.78-carat cabochon-cut emerald from Brazil, emerald eyes, brilliant-cut diamonds. Photos courtesy Cartier

Cartier Royal ring, 18K white gold, one 2.60 carat rose-cut diamond, black lacquer, brilliant-cut diamonds. Cartier Royal ring, platinum, one 22.75 carat sugarloaf sapphire from Ceylon, brilliant-cut diamonds. Cartier Royal ring, platinum, one 20.02 carat...

An impressive pair of diamond earstuds. Photo Bonhams. The brilliant-cut diamonds, weighing 3.57 and 3.52 carats, within a four-claw setting. Estimate HK$ 4.65 million - 5 million (€430,000 - 470,000) Accompanied by a GIA report stating that the 3.52...

Pink oblong spinel with border of brilliant-cut diamonds, set in silver in an openwork mount. Europe, ca.1850. Height: 0.625 in, Width: 0.5 in. Bequeathed by the Rev. Chauncy Hare Townshend. 1317-1869. © V&A Images During medieval times, spinels were...