Diamond ring, Cartier. Estimate 39,000 — 59,000 CHF. Photo Sotheby's
The step-cut diamond weighing 4.51 carats, set between trapeze-shaped diamond shoulders, size 51, signed Cartier, numbered.
Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 12 mai 2015, 10:30 AM