Gatsby Jewellery Ltd has dated this piece to the 1870s.
The stones are internally very clean, very bright, and display a subtle warm-ish glow.

Accompanied by an independent jewellery report from WGI.
Cut: Old mine cuts.
Colour: Both are M.
Clarity: Both are VS1.
Carat: 0.53 and 0.52.
Circa: The diamonds were cut and polished in the mid to late 1800s. The settings are new (unworn).
Measurements: One diamond is 4.81 x 4.75mm, the other is 4.82 x 4.73mm.
Metal: 18k gold. Hallmarked.
Gatsby Jewellery Ltd has dated this piece to the 1870s.
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