A Very Fine Platinum Sapphire & Diamond Ring, Tiffany & Co., USA, circa 1935
Four-claw set at the centre with a circular mixed-cut stone of pleasing cornflower blue colour weighing 5.68ct, the splayed shoulders set throughout with graduated brilliant-cut diamonds, faintly marked 'TIFFAN'
Sapphire accompanied by The Gem & Pearl Laboratory certificate no. 08732, dated 17 October 2013; stated to measure 9.67-9.78 x 7.08 mm; stated to be a natural sapphire, no evidence of heat treatment observed; stated origin Sri Lanka
Ring size 25 mm long, 19 mm wide

Footnote: Amercia’s premier jeweller was founded In 1837 by Charles Tiffany and John Young. By 1853 Tiffany had assumed complete ownership of the business, re-naming it Tiffany & Co. with a focus upon fine jewellery. He acquired many legendary precious stones, becoming known as the ‘King of diamonds.’ Eminent designers and renowned gemmologists propelled Tiffany & Co. to the forefront of the jewellery world and this tradition continues to this day. Following the management-led buyout of Tiffany in 1984, the company operates in more than 100 locations.

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