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 1940s.

Accompanied by an independent jewellery report.
Cut – Transitional brilliant cut in the centre, with rose cut diamonds in the mount.
Colour – The centre is fancy light greenish yellow. The rose cuts are F to H.

Clarity – SI1 in the centre. The roes cuts are SI1 to I1; all are eye clean.
Carat – A known 1.66 in the centre. The total approximate weight of the diamonds in the surround is 0.40 carat.
Circa – 1945.
Size – K (UK) or 5 1/8 (US). Complimentary sizing is available, can go up or down.

Measurements – The diamond, including the rubover setting, is 8mm in diameter. The ring is 13.8mm at the widest point and sits 7.7mm from the finger.
Metal – Platinum. The centre diamond is in 18k yellow gold. Tested.
Video – To view a video of this ring in daylight, please copy / paste the following link into your browser: https://vimeo.com/231183021
Gatsby Jewellery Ltd has dated this piece to the 1940s.
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