Gatsby Jewellery Ltd has dated this piece to the 1870s.

Accompanied by an independent jewellery report from WGI.
Cut: Old mine cuts.
Colour: M.
Clarity: VS1 and VS2.
Carat: 0.59 and 0.58.
Circa: The diamonds were cut and polished in the mid to late 1800s. The settings are new (unworn).

Measurements: Each diamond is approximately 4.95 x 5.05mm.
Metal: 18k gold. Hallmarked.
co.uk/products/1-17-carat-old-mine-cut-diamond-stud-earrings-18k-gold
Item # 11131213S324
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