3 mai 2018
Superb sapphire and diamond ring, 1930s
Lot 365. Superb 14.01 carats no heating 'royal blue' Kashmir sapphire and diamond ring, 1930s. Estimate 950,000 — 1,430,000 CHF. © Sothebys 2018
The cushion-shaped sapphire weighing 14.01 carats, set in a mount embellished with brilliant-, single-cut and baguette diamonds, size 54, French assay mark for platinum and French partial maker's mark.
Accompanied by SSEF report no. 97361 and Gübelin report no. 18010245, each stating that the sapphire is of Kashmir origin, with no indications of heating, 'royal blue' colour, each with an appendix letter.
Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 15 may 2018.
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