Gatsby Jewellery Ltd has dated this piece to the 1890s.

Attached to a 16 inch 9k rose gold trace chain
Cut – Cushion cut garnets.
Carat – Approximately 1.00 carat total.
Circa – 1890.
Measurements – The horseshoe, not including the bales, is 14.75 x 16.11mm. The chain is 40cm (16 inches).
Metal – 9k gold. Tested.
Gatsby Jewellery Ltd has dated this piece to the 1890s.
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