Pearl and diamond brooch, circa 1860. Photo Sotheby's

Of tied bow design, set with circular-cut and cushion-shaped diamonds, suspending a detachable pearl pendant, the cupola mount set with rose-cut stones, signed G. Confalonieri Milano. Estimate 25,000 — 35,000 CHF. Lot 262. Sold 31,250 CHF

Accompanied by SSEF report no. 53493 stating that the pearl is natural.

Sotheby's. Magnificent Jewels and Noble Jewels And A Celebration of Taste and Style, Magnificent Jewels from a Private Collection. Geneva, 12 May 2009