Lot 209. Diamond Necklace-Bracelet Combination, Chaumet, France, circa 1930. Estimate 80,000 — 120,000 USDLot sold 112,500 USD. Courtesy Sotheby's.

The geometric links set with old European, single-cut and baguette diamonds, length 15¼ inches, detachable into five segments for variety of wear, with French assay and partial maker's marks for Chaumet; circa 1930. 

Sotheby's. The Jeweler’s Eye: The Personal Collection of Fred Leighton New York, 18 Apr 2018, 02:00 PM