It was listed by Gatsby Jewellery Ltd. Sold pieces stay on Sellingantiques as a record of what has passed through, and the next one is rarely far away.
Gatsby Jewellery Ltd has dated this piece to the 1900s.

Contemporary hallmarks. London.
Accompanied by an independent jewellery report.
Cut – Old mine cut.
Colour – F.
Clarity – SI1.
Carat – A known 0.50.
Circa – The diamond is circa 1900, the mount is new.
Size – M (UK) or 6 (US). Complimentary sizing is available, can be sized up or down.

Measurements – The diamond is 4.6mm by 4.5mm and sits 6.1 mm from the finger.
Metal – Platinum. Hallmarked.
Video - To view a video of this ring in daylight, please copy / paste the following link into your browser: https://vimeo.com/231097844
Gatsby Jewellery Ltd has dated this piece to the 1900s.
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