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.

French hallmarks.
Cut – An oval shaped mixed cut ruby with old mine / miner cut diamonds.
Colour – The diamonds are G.
Clarity – The ruby is clean to the naked eye. The diamonds are VS1 to VS2.
Carat – The ruby is 3.05 carat, with an estimated diamond weight of 2.50 carat.

Circa – 1920.
Measurements – The cluster is 15.9mm by 13.8mm and sits 7.1mm from the finger.
Size – Q (UK) or 8 (US). Complementary sizing is available, can go up or down in size.
Metal – 18k gold. Hallmarked.
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