Gatsby Jewellery Ltd has dated this piece to the 1930s.
A further two diamonds are set in platinum at the top of the shoulders, leading to a slim 18k rose gold shank. The engraving in the gallery just below the diamonds - a detail that almost no one will ever see - demonstrates the care and craft that went into making this truly special ring.

Accompanied by an independent jewellery report from IGR.
Cut:? Cushion cut sapphire and old mine cut diamonds.
Colour:? The diamonds range from G to I.
Clarity:? The sapphire is eye-clean. The diamond range from VS1 to VS2.

Carat:? The sapphire is approximately 4.49 carat, with a total approximate diamond weight of 2.76 carat.
Circa:? 1935.
Size:? P 1/2 (UK) or 7.75 (US). Free sizing available.
Measurements:? The head of the ring is 16.9 x 15.3mm and sits 7.3mm from the finger.

Weight:? 7.47 grams.
Metal:? 18k rose gold and platinum. Faint French hallmarks and tested with a Niton DXL Preciousl Metal Analyzer to confirm.
Video: To view videos of this ring recorded in natural light, please copy / paste the following URL into your browser: https://gatsbyjewellery.co.uk/products/art-deco-4-49-carat-sapphire-2-76-carat-old-cut-diamond-ring-circa-1935
Item # 68413S193
Gatsby Jewellery Ltd has dated this piece to the 1930s.
Gatsby jewellery are a husband and wife team who have years of knowledge and experience in dealing in fine antique jewellery.
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