Antique Victorian 925 silver and amethyst retail cocktail ring

Product Name: Antique Victorian 925 silver and amethyst retail cocktail ring
This ring is spectacular and very very old. I believe at one point it may have a gold plating but this ring is so old that it is now just silver you can not see the 925 stamp however I have had it tested both metal and stone. I have found similar rings on different sites for 1200.00 retail to 1400.00 ....I have yet to find this exact ring anywhere. The size of the ring is a 5 or 5.5. It can be resized easily. This ring is a showstopper. Dm qith questions. Thanks.