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 1930s.

Accompanied by an independent jewellery report.
Cut – Oval cut emerald and rose cut diamonds.
Colour – The emerald is Bright Strong Green. The diamonds are I.

Carat – The emerald is approximately 5.20 carat, with an estimated diamond weight of 0.06 carat.
Circa – 1935.
Size – L (UK) or 5.5 (US). Complimentary sizing is available, can go up or down.
Measurements – The emerald is approximately 13.5mm by 9.8mm and sits 7mm from the finger.

Metal – Platinum. Tested.
Video – To view a video of this ring recorded in daylight, please copy / paste the following link into your browser: https://vimeo.com/337517049
https://www.gatsbyjewellery.co.uk/product/art-deco-5-20-carat-oval-cut-emerald-solitaire-ring-circa-1935/
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