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Lot 312. 18 Karat Two-Color Gold, Ruby and Diamond Ring, Buccellati. Estimate 10,000 — 15,000 USD (8,842 - 13,263 EUR). Photo Sotheby's.

The stylized floral design centering an oval-shaped ruby, framed by round diamonds and with a textured gold border, size 6½, signed Gianmaria Buccellati, Italy, numbered W695. With signed box. 

Sotheby's. Fine Jewels, New York, 10 juin 2016, 10:00 AM