Pair of Conch Pearl and Diamond Pendent Earrings. Estimate 980,000 — 1,200,000  HKD. Unsold. Photo Sotheby's.

Each suspending three fringes of conch pearls, decorated by briolette diamonds, to a surmount set with a conch pearl, surrounded by rose-cut diamonds, the fourteen conch pearls measuring approximately 11.74 x 8.22 x 6.20mm to 5.46 x 4.76 x 4.36mm, the diamonds altogether weighing approximately 12.20 carats, mounted in 18 karat white gold. 

Accompanied by SSEF report. 

Sotheby's, Magnificent Jewels and Jadeite, Hong Kong, 07 Apr 2014