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 1920s.

Accompanied by an independent jewellery report.
Cut – Cushion shaped mixed cut ruby and old mine cut diamonds.
Colour – The ruby is deep red. Diamonds are G to I.
Clarity – The ruby is VS. The diamonds are SI1 to I1; all are clean to the naked eye.

Carat – The ruby is approximately 1.30 carat, with an estimated 0.46 carat of diamonds.
Circa – 1925.
Size – J (UK) or 4 5/8 (US). Complementary sizing is available, can be sized up or down.
Measurements – The cluster is 13mm by 12mm and sits 3.9mm from the finger.
Metal – Platinum. Tested.
com/137242780
Gatsby Jewellery Ltd has dated this piece to the 1920s.
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