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 1950s.
Twelve diamonds (six each side) are box and milgrain set in a step down formation leading to a substantial flat platinum shank.

Accompanied by a gemstone report from Gemmological Certification Services (GCS) stating the chrysoberyl shows no indication of treatment.
Cut – Emerald cut chrysoberyl and eight-cut diamonds.
Colour – The diamonds are F to G.

Clarity – The chrysoberyl is loupe clean. The diamonds are VS1 to VS2.
Carat – The chrysoberyl is 9.02 carat, with approximately 0.18 carat of diamonds.
Circa – 1950.
Size – K (UK) or 5 1/8 (US). Complimentary sizing is available, can go up or down.

Measurements – The sapphire is 12.17 x 10.27mm and sits 7.75mm from the finger.
Metal – Platinum.
Video – To view a video of this ring recorded in daylight, please copy / paste the following link into your browser: https://vimeo.com/459391770
Gatsby Jewellery Ltd has dated this piece to the 1950s.
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