It was listed by Gatsby Jewellery Ltd. Sold pieces stay on Sellingantiques as a record of what has passed through, and the next one is rarely far away.
Gatsby Jewellery Ltd has dated this piece to the 1950s.
A simple split gallery leads to a slim and tapering yellow gold shank.

Accompanied by an independent jewellery report from IGR (#30307986).
Cut – Oval cut sapphire and old cut diamonds.
Colour – The diamonds are H to I.
Clarity – The sapphire is VVS. The diamonds are SI1 to SI2; all are clean to the naked eye.

Carat – The sapphire is approximately 0.95 carat, with a total approximate diamond weight of 0.21 carat.
Circa – 1950.
Size – M 1/2 (UK) or 6.25 (US). Complimentary sizing is available, can be sized up or down.

Measurements – The head of the ring is 12 x 10m and sits 5mm from the finger.
Metal – Stamped 18CT – 18k white and yellow gold – and tests as such.
https://www.gatsbyjewellery.co.uk/product/mid-century-0-95-carat-sapphire-old-cut-diamond-ring-circa-1950/
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