Gatsby Jewellery Ltd has dated this piece to the 1930s.
The stone is secured in 18k yellow gold and surrounded by twelve white, bright and lively old mine cut diamonds in a platinum coronet setting, leading to a slim and tapering yellow gold shank.

Accompanied by an independent jewellery report from IGR (#30309567).
Cut – Cushion shaped emerald and old mine cut diamonds.
Colour – The diamonds are E to G.
Clarity – The diamonds are VS2 to SI1.
Carat – The emerald is approximately 2.35 carat, with a total approximate diamond weight of 0.96.

Circa – 1930.
Size – L (UK) or 5.5 (US). Complimentary sizing is available, can be sized up or down.
Measurements – The head of the ring is approximately 15.7 x 15.8mm and sits 7.9mm from the finger.
Metal – 18k yellow gold. The diamonds are set in 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