Gatsby Jewellery Ltd has dated this piece to the 1900s.
The diamond sits nice and low to the finger in a nicely chunky 18k yellow gold shank which splits at the shoulders.

Cut – Old mine cut.
Colour – I. Although the diamond is graded as I1, the inclusions are very difficult to see with the naked eye.
Clarity – I1.
Carat – 0.52.
Circa – 1900.
Weight – 5.25 grams
Measurements – The diamond is approximately 4.36 x 4.62mm. The ring is 5.8mm at the widest point and sits 4.8mm from the finger.
Size – R (UK) or 8 5/8 (US). Complimentary sizing is available, can go up or down.
Metal – 18k gold. Hallmarked.
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