Gatsby Jewellery Ltd has dated this piece to the 1930s.
The centre is flanked by a pair of high white old mine cut diamond in five-claw coronet settings, leading to a slim and tapering platinum shank.

Accompanied by an independent jewellery report from IGR (#30310452).
Cut – Cushion cut sapphire and old mine cut diamonds.
Colour – The diamonds are F to G.
Clarity – The diamonds are VS1 to VS2.
Carat – The sapphire is approximately 0.51 carat, with a total approximate diamond weight of 0.57 carat.

Circa – 1935.
Measurements – From the outer edge of one diamond to the other is 13.8mm. The ring is 5.7mm at the widest point and sits 4.1mm from the finger.
Size – L (UK) or 5.5 (US). Complimentary sizing is available, can go up or down.
Metal – Platinum. Tested.
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.
You can view the stock and full dealer information on the Gatsby Jewellery Ltd Profile Page