Gatsby Jewellery Ltd has dated this piece to the 1930s.
The cluster sits nice and low to the finger on a slim D-shaped shank featuring double grooves at the shoulders.

Accompanied by an independent jewellery report from IGR (#30310376).
Cut – Old European cut diamond in the centre, with eight-cuts in the surround.
Colour – The centre is F, the surrounding diamonds are F to J.

Clarity – The centre is SI2. The surrounding stones are VS2 to SI1.
Carat – The centre is approximately 0.53 carat, with a total approximate weight of 0.81 carat.
Circa – 1930.
Size – K 1/2 (UK) or 5 3/8 (US). Complimentary sizing is available, can go up or down.
Measurements – The centre, including the bezel setting, is 6mm in diameter. The head of the ring is 11.25mm in diameter.
Metal – Platinum. Tested.
Gatsby Jewellery Ltd has dated this piece to the 1930s.
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