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.

Accompanied by an independent jewellery report from IGR (#30307853).
Cut – Old mine cuts.
Colour – The centre is I, with H and J colour diamonds either side.
Clarity – The centre is VS2, with VS2 and SI1 either side.

Carat – The centre is approximately 0.60 carat, with a total approximate diamond weight of 1.44 carat.
Circa – The diamonds are late Victorian. The setting is new.
Measurements – From the edge of one outer diamond to the other is 14.5mm. The ring is 6mm at the widest point and sits 5mm from the finger.

Size – M (UK) or 6 (US). Complimentary sizing is available, can go up or down.
Metal – 18k white gold. Fully hallmarked.
Video – To view a video of this ring recorded in daylight, please copy / paste the following link into your browser: https://vimeo.com/349698669
https://www.gatsbyjewellery.co.uk/product/1-44-carat-old-cut-diamond-trilogy-ring-18k-white-gold/
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