Lot 535. 'Royal Blue' Burmese sapphire and diamond bracelet, Cusi. Estimate 100,000 — 150,000 CHF. Lot sold 278,500 CHF. Photo: Sotheby's 2012

Designed as a series of graduated oval sapphires alternating with oval diamonds, length approximately 182mm, Italian assay mark.

Accompanied by Gübelin reports for the central four sapphires: no. 12070080 and no. 12070077, stating that two of the sapphires are of Burmese origin, with no indications of heating; report no. 12070079, stating that the sapphire is of natural origin, 'Royal Blue' colour, with no indications of heating; and no. 12070078, stating that the sapphire is of natural origin, with no indications of heating.

Sotheby's. Magnificent Jewels, Geneva, 14 Nov 2012