Gatsby Jewellery Ltd has dated this piece to the 1950s.
The stone sits nice and low to the finger and is flanked by flamboyant platinum shoulders set with eight (four each side) eight-cut diamonds, leading to a slender 18k yellow gold shank. A wonderfully individual ring.

Accompanied by a sapphire report from Gemmological Certification Services (GCS) stating the sapphire is Sri Lankan (Ceylon) in origin.
Cut:? Fancy step-cut sapphire and eight-cut diamonds.
Colour:? The diamonds are F to G.

Clarity:? The sapphire is eye clean. The diamonds are VS1 to VS2.
Carat:? The sapphire is a known 2.52 carat. The total approximate diamond weight is 0.09 carat.
Circa:? 1950.
Size:? S (UK) or 9 1/8 (US). Free sizing available.

Measurements:? The sapphire is 10.2 x 8.2mm and sits 5.4mm from the finger.
Weight:? 4.35 grams.
Metal:? 18k yellow gold. The shoulders are platinum. Tested with a Niton DXL Precious Metal Analyzer.
Item # 1211213S333
Gatsby Jewellery Ltd has dated this piece to the 1950s.
Gatsby jewellery are a husband and wife team who have years of knowledge and experience in dealing in fine antique jewellery.
You can view the stock and full dealer information on the Gatsby Jewellery Ltd Profile Page