Gatsby Jewellery Ltd has dated this piece to the 1910s.
The stone is secured in platinum by four split claws set at the compass points, with elegant scroll detailing in the gallery, leading to a slim 18k rose gold shank.

Accompanied by a diamond identification report from IGI (#395978806).
Cut – Old mine cut.
Colour – F.
Clarity – SI1.
Carat – 0.80.
Circa – 1910.
Measurements – The diamond is 5.49 x 5.35mm. Sits 6mm from the finger.
Size – M (UK) or 6 (US). Complimentary sizing is available, can go up or down.
Metal – 18k rose gold and platinum. Tested.
Gatsby Jewellery Ltd has dated this piece to the 1910s.
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