Gatsby Jewellery Ltd has dated this piece to the 1920s.
The impressive shoulders feature two rows of three eight-cut diamonds with a fine vent between each row, leading to a slender knife edged platinum shank.

Accompanied by an independent jewellery report from IGR (#30310510).
Cut – Old European cut in the centre, with eight-cuts in the shoulders.
Colour – The centre diamond is K. The smaller diamonds are E to F.

Clarity – The centre is VS2. The smaller diamonds are VS2 to SI1.
Carat – The centre is 0.90 carat, with a further approximate 0.18 carat in the shoulders.
Circa – 1920.
Size – Q (UK) or 8 (US). Complimentary sizing is available, can go up or down.
Measurements – The centre is approximately 6 x 5.7mm and sits 6.1mm from the finger.
Metal – Stamped 10%IRID.PLAT inside the band, indicating 10% iridium and 90% platinum, and tests as such.
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