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.
Sits nice and close the to finger, making this ring practical as well as beautiful.

Cut – Old mine cuts.
Colour – The diamonds are H to I.
Clarity – SI1 and SI2 respectively. Both stones are clean to the naked eye.
Carat – Each diamond is approximately 0.10 carat.
Circa – 1905.
Size – L 1/2 (UK) or 5 7/8 (US). Complimentary sizing is available, can be sized up or down.

Measurements – The ring is 8mm at the widest point and sits 2.7mm from the finger.
Metal –Stamped 18CT – 18k gold – and tests as such.
https://www.gatsbyjewellery.co.uk/product/art-nouveau-0-20-carat-old-cut-diamond-two-stone-twist-ring-circa-1905/
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