Lot 1675. Diamond Necklace, Cusi. Estimate HK$2,400,000–3,200,000 (308,000–410,000 USD). Photo: Sotheby's

The front highlighting five brilliant-cut diamonds weighing 5.41, 5.10, 2.15, 2.01 and 1.74 carats, embellished with marquise-shaped and circular-cut diamonds weighing approximately 20.00 carats in total, mounted in platinum and 18 karat white gold, signed Cusi, length approximately 370mm, two diamonds weighing 5.41 and 5.10 carats can be detached from the necklace.

Accompanied by five GIA reports, stating that the diamonds ranging from 5.41 to 1.74 carats are F to K Colour, VVS2 to SI1 Clarity.

Sotheby's. Magnificent Jewels and Jadeite, Hong Kong, 04 Apr 2017, 02:30 PM