Gatsby Jewellery Ltd has dated this piece to the 1960s.

Cut – Octagonal cut ruby and round brilliant cut diamonds.
Colour – The diamonds are F to G.
Clarity – The diamonds are VS1 and VS2.
Carat – The ruby is a known 2.37 carat. A total approximate diamond weight of 0.60 carat.

Circa – 1960.
Size – K 1/2 (UK) or 5 3/8 (US). Complimentary sizing is available, can go up or down.
Measurements – The ruby is 9.40 x 6.11mm. The head of the ring is 14.5 x 10.9mm and sits 6.2mm from the finger.
Metal – 18k gold. French hallmarks.
Gatsby Jewellery Ltd has dated this piece to the 1960s.
Gatsby jewellery are a husband and wife team who have years of knowledge and experience in dealing in fine antique jewellery.
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