Lot 9197. 6.77, 5.30 and 3.01 carats Square Emerald-cut Diamond Pendent Necklace. Estimate 2,500,000 — 3,500,000 HKD. Photo: Sotheby's

Suspending a line of three square emerald-cut diamonds weighing 6.77, 5.30 and 3.01 carats respectively, to the oval-link chain decorated with collet-set circular-cut diamonds, mounted in platinum, length approximately 415mm.

Accompanied by three GIA reports numbered 2181099387, 5172537020, 5181522342, dated 9 January 2017, 8 December 2016 and 14 June 2017 respectively, stating that the 6.77, 5.30 and 3.01 carat diamonds are all E Colour, VVS2 Clarity; 6.77 and 5.30 carat diamonds with Excellent Polish and Symmetry..