Lot 256. Jadeite, onyx and diamond pendant, Boucheron, circa 1925. Estimate 12,000 — 15,000 GBP. Courtesy Sotheby's.

Set with an oval jadeite disc carved on both sides with a design of double gourds on a vine, within a millegrain border set with rose and circular-cut diamonds, the base set with polished onyx and jadeite sections, suspended from a diamond set tapered loop, one diamond deficient, signed Boucheron, French assay marks. 

Sotheby's. S. J. Phillips: A Bond Street Legacy, London, 18 oct. 2017, 12:00 PM