Adam's Fine Jewellery & Watches September 18th 2018

66 Tuesday 18 th September 2018 104 A COLOURED SAPPHIRE AND DIAMOND RING The rectangular cushion-shaped purple sapphire weighing 2.73cts, within a surround of round brilliant-cut diamonds, mounted in 18K rose gold, diamonds approximately 0.10ct total, ring size L½ € 3,000 - 4,000 Accompanied by a report fromThe Gem & Pearl Laboratory in London, stating that the sapphire weighing 2.73cts is of Sri Lankan/ Madagascar origin, with no indications of heat treatment. Further- more, the sapphire exhibits a change of colour, appearing purple in daylight and pink in incandescent light. Report number 15369, dated March 2nd 2018. 105 A SAPPHIRE AND DIAMOND CLUSTER RING The oval-shaped sapphire weighing approximately 3.50cts, within a multiple-claw setting and a surround of round bril- liant-cut diamonds, mounted in 18K gold, diamonds approximately 0.60ct total, ring size L½ € 3,500 - 4,500 106 AN EMERALD AND DIAMOND RING The square-shaped emerald weighing approximately 1.60cts within a four-claw setting, between two half-moon and tapered baguette-cut diamond shoulders, mounted in platinum, diamonds approximately 1.40cts total, ring size M € 4,000 - 5,000 107 AN EMERALD AND DIAMOND RING The cushion-shaped emerald, weighing approximately 3.90cts, within a double four-claw setting, between pear-shaped dia- monds, mounted in 18K gold, diamonds approximately 0.60ct total, ring size N € 4,000 - 6,000 108 A SAPPHIRE RING The rectangular cushion-shaped sapphire weighing 5.95cts, within a half collet-setting, to a plain polished hoop, mounted in 18K gold, ring size L½ € 5,500 - 6,500 Accompanied by a report fromThe Gem & Pearl Laboratory in Lon- don, stating that the sapphire weighing 5.95cts, is of Sri Lankan origin, with no evidence of thermal treatment. Report no. 15790, dated June 1st 2018. 109 A COLOURED SAPPHIRE AND DIAMOND RING The cushion-shaped pink sapphire weighing 4.01cts within a four-claw setting, between half-moon shaped diamonds, mounted in 18K gold and platinum, diamonds approximately 0.70ct total, ring size L½ € 7,500 - 8,500 Accompanied by a report fromThe Gem & Pearl Laboratory in London, stating that the sapphire weighing 4.01cts, is natural, with no indications of heat treatment. Report no. 03028, dated July 8th 2010.