This miniature portrait belonged to my grandmother who was born and raised in Pretoria South Africa, settled in Calgary, Canada and retired in Grants Pass, Oregon.
I believe this painting is a Jean Babtiste Isabey forgery, based on my research and the signature, which appears to be poorly "scratched" over the right shoulder.
The frame of the painting is made of what appears to me as a cheap metal. I also suspect the "jewels" on the frame are glass.
Question: What is a Jean Babtiste Isabey forgery worth?