Vintage Sterling silver with MoP and stones mermaid brooch

Description

Vintage Sterling silver with MoP and stones mermaid brooch
She is delightful and reminds me of an Art Nouveau style with her symbolised hair. The green stone is her head and there is a very dark purple stone embedded in her tummy – it looks almost black. Obviously made by an artisan but not signed.
Marked 925 underneath. I have wiped this but not cleaned it thoroughly.
Approx 2 5/8” high.
Many of my items are from estate sales or auctions. I research them as much as possible, but I am not an expert and there is often no history or information about them when I buy them. It’s important to me that you are happy with your purchases so do contact me with any queries you may have.