Lot 405. Natural pearl, gem set and diamond necklace, Petochi. Estimate 95,000 — 140,000 CHF. Lot sold 302,500 CHF. Photo: Sotheby's 2012 Designed as three graduated rows of natural pearls measuring from approximately 4.0 to 9.3mm, on a clasp set with...

Gem set and diamond necklace. Photo Sotheby's. Of wreath design, set with variously facetted and polished emeralds, rubies and sapphires, and pear-shaped, circular-cut and rose diamonds of yellow, brown and near colourless tints, inner circumference approximately...