Lot 1658. 70.00 carats Diamond Necklace, 1950s. Estimate 3,500,000 — 4,500,000 HKD. Photo: Sotheby's

Designed as a graduated fringe of step- and circular-cut diamonds, embellished with diamond-set scroll motifs, the diamonds weighing approximately 70.00 carats in total, mounted in platinum, 1950s, length approximately 370mm. 

Sotheby’s. Magnificent Jewels & Jadeite, Hong Kong, 04 Oct 2016, 02:00 PM