Lot 379. Gold, Citrine and Diamond Brooch-Necklace Combination, Cartier, circa 1945. Estimate 60,000 — 80,000 USD. Unsold. Courtesy Sotheby's.

The pendant-brooch set with an emerald-cut citrine within a surround of oval-shaped citrines, old European and single-cut diamonds, suspending a detachable gold ropetwist fringe terminating on four pear-shaped citrines, accented by old-European cut diamondsnecklace length 15 inches, the pendant and fringe both detachable, signed Cartier London; circa 1945. 

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