Lot 423. Impressive Burmese ruby and diamond necklace. Estimate 300,000 — 600,000 CHF. Lot sold 350,000 CHF. Courtesy Sotheby's

Set with oval rubies, brilliant-cut and pear-shaped diamonds, supporting a detachable pendant centering on a cushion-shaped ruby weighing 20.43 carats, length approximately 440mm, signed Athenia.

Accompanied by SSEF report no. 105715, stating that the necklace contains rubies of Burmese origin, with indications of heating and a moderate amount of residue in fissures.