An absolutely beautiful antique sapphire and diamond ring. The sapphire in the centre - certified as natural, unheated and originating from Ceylon (Sri Lanka) displays a subtle colour change: deep, inky blue in daylight, and rich, regal purple in incandescent light. The stone, set with 18k yellow gold claws, is presented in a extremely pretty platinum mount: each of the ''petals'' around the sapphire is set with three eight cut diamonds (so a total of 36 diamonds all together), with ornate detailing in the gallery. On a slender platinum shank.
Accompanied by a sapphire report from The Gem & Pearl Laboratory stating the sapphire shows no evidence of heating, and is Sri Lankan (Ceylon) in origin.
Cut:? Oval sapphire and eight-cut diamonds.
Colour:? The sapphire displays a slight colour change: blue in daylight and purple in incandescent light. The diamonds are H to I.
Clarity:? The sapphire is slightly included. The diamond are VS1 to VS2.
Carat:? The sapphire is 6.12
...carat. With a total approximate diamond weight of 0.30 carat.
Circa:? 1920.
Size:? P 1/2 (UK) or 7 3/4 (US). Free sizing available.
Measurements:? The sapphire is approximately 11.7 x 9.4mm. The head of the ring is 17.95 x 15.1mm and sits 6.2mm from the finger.
Weight:? 4.78 grams.
Metal:? Platinum. The claws holding the sapphire are 18k yellow gold. Tested with a Niton DXL Precious Metal Analyzer.
Internal Reference: 1112213S279
Antique ID Number (AIDN): SA1122532
Dateline of this antique is 1920
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