Gatsby Jewellery Ltd has dated this piece to the 1940s.
A sturdy white gold shank features six (three each side) old cut and eight cut diamonds in the shaped shoulders to a D-shaped shank.

Accompanied by an independent jewellery report from IGR (#30307240).
Cut – Round cabochon ruby with old cut and eight-cut diamonds.
Colour – The diamonds are G to H.
Clarity – The diamonds are VS1 to I1; all are clean to the naked eye.

Carat – The ruby is approximately 10.43 carat, with approximately 0.12 carat of diamonds.
Circa – 1940.
Size – L (UK) or 5.5 (US). Complimentary sizing is available, can be sized up or down.
Measurements – The ruby is approximately 5.5mm in diameter. The ring is 12.2mm at the widest pint and sits 7.2mm from the finger.
Metal – Stamped 18K – 18k white gold – and tests as such.
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