Ruby and diamond necklace, Bulgari - Photo Sotheby's

The front composed of three rows of rectangular links, each set at the centre with an oval ruby and pavé-set with brilliant-cut diamonds, a knotted motif at each side, leading to two rows of similar links at the back, length approximately 400m, signed Bulgari, Italian assay and maker's marks. Estimation: 200,000 - 300,000 CHF - Unsold

Sotheby's. Magnificent Jewels. Genève | 14 nov. 2012 www.sothebys.com