Lot 188. A 90.05 carats Ceylon briolette sapphire and diamond necklace, by Harry Winston. Estimate CHF 180,000 - CHF 220,000. Price realised CHF 197,000© Christie's Image Ltd 2015

The baguette-cut diamond line suspending a marquise-shaped diamond and a sapphire briolette, weighing approximately 90.05 carats, mounted in platinum and gold, 41.0 cm, in black suede Harry Winston fitted case. With maker's mark of Jacques Timey for Harry Winston.

Accompanied by report no. 76604 dated 26 September 2014 from the SSEF Swiss Gemmological Institute stating that the sapphire is of Ceylon origin, with no indications of heating.

Christie's. GENEVA MAGNIFICENT JEWELS, 13 May 2015, Geneva