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Lot 320. Princess Marie von Hatzfeldt's Natural pearl and diamond pendant, late 19th century. Estimate 30,000 — 50,000 CHF. Photo: Sotheby's.

Of foliate design, set with cushion-shaped, single-cut and rose diamonds, supporting a detachable pendant set with a drop shaped natural pearl weighing 16.56 carats and measuring approximately 12.50 x 13.30 x 15.30mm, additional brooch fitting.

Accompanied by SSEF report no. 87526, stating that the pearl was found to be natural, saltwater.

Provenance: Princess Marie von Hatzfeldt, (1820–1897)
Her son Prince Hermann von Hatzfeldt (1848-1933) and his wife, Countess Nathalie von Benckendorff (1854–1931), formerly in Schloss Trachenberg (Silesia)
thence by descent.

Sotheby's. Magnificent Jewels and Noble Jewels, Geneva, 16 Nov 2016, 10:30 AM