Gatsby Jewellery Ltd has dated this piece to the 1960s.

Accompanied by an independent jewellery report from IGR (#30310062).
Cut – Old European cuts and eight-cuts
Colour – The diamonds range from E to F.
Clarity – VS2 to SI1.
Carat – A total approximate diamond weight of 0.90 carat

Size – L (UK) or 5.5 (US). Complimentary sizing is available, can be sized up or down.
Measurements – The ring is 9mm at the widest point. The central cluster is 8.8 x 8.5mm. Sits 4.5mm from the finger.
Metal – 18k gold. French hallmarks.
Gatsby Jewellery Ltd has dated this piece to the 1960s.
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