Gatsby Jewellery Ltd has dated this piece to the 1930s.
A French vintage delight.

Accompanied by an independent jewellery report from IGR (#30308950).
Cut – Oval cut sapphire and eight-cut diamonds. .
Colour – The diamonds are G to I.
Clarity – The diamonds are VS1 to VS2.
Carat – The sapphire is approximately 2.24 carat, with a total approximate diamond weight of 0.14 carat.

Circa – 1935.
Size – L 1/2 (UK) or 5 7/8 (US). Complimentary sizing is available, can be sized up or down.
Measurements – The head of the ring is 16.7 x 8.9mm and sits 5.7mm from the finger.
Metal – 18k white gold and platinum. French hallmarks.
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