Lot 306. Rock crystal and seed pearl sautoir, René Lalique, circa 1930. Estimate 30,000 — 40,000 CHF. Lot Sold 37,500 CHF. Photo Sotheby's

The rock crystal pendant carved with figures of two caryatids, on a black silk cord knotted and decorated with four seed pearls, length approximately 710mm, pendant signed R. Lalique, fitted case stamped Lalique. 

Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 11 nov. 2015, 10:00 AM