Digby Antiques (Wiltshire) has dated this piece to the 19th Century.
Looks to be Russian, based on the costume, the head dress and the fur on the coat.
The mount around is most likely rose gold.
The back is covered in the original watered silk.
It is in very good condition.
Frame measures W 10.5 cm H 11.5 cm
Miniature W 4.2 cm H 4.3 cm
Digby Antiques (Wiltshire) has dated this piece to the 19th Century.
You can view the stock and full dealer information on the Digby Antiques (Wiltshire) Profile Page