Woodbridge Antiques has dated this piece to the Edwardian era.

A lovely pendant, the elegant typically Edwardian clean lines make this style so wearable for modern times.
In super antique condition.
Hallmarks not visible, though there are some indistinct marks to the clasp. It tests as 15ct gold.
Measurements: Length 5.2 cm Chain length: 16 "Weight: 3.36 grams
All measurements are approximate.
Woodbridge Antiques has dated this piece to the Edwardian era.
Specialists in quality antique silver, fine jewellery & accessories
You can view the stock and full dealer information on the Woodbridge Antiques Profile Page