Lot 293. Thai ruby and diamond parure. Estimate 690,000 — 1,180,000 CHF. Photo Sotheby's.

Comprising: a necklace set with cushion-shaped and oval rubies, highlighted with circular-cut and oval diamonds, length approximately 425mm; a bracelet, length approximately 180mm; a pair of earrings of cluster design, each set with an oval ruby, pear-, marquise-shaped and oval diamonds, post and hinged back fittings; and a ring set with an oval ruby between half-moon diamonds, size 54, sizing bead.  

Accompanied by Gübelin report no. 0002012, no. 0002015, no. 0002014 and no. 0002013, each stating that the rubies are of Thai origin, with indications of heating.

Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 16 nov. 2016, 10:30 AM