I can't find a mark but it looks to be made of sterling silver?. (see photos for condition details).
Black Widow Spider Decal Motocross Racing Laptop Helmet Trunk Wall Vinyl Car Sticker Die Cutting Waterproof PVC - AliExpress
Shop ring spider women with fast shipping and fast return. This adjustable spider ring is made of gold plated metal. Find spider jewelry
Vintage Gothic Spider Ring Women's Open Ring Artificial Gem Korean Fashion Adjustable Ring Lover Party Designer Jewelry
Shop ring spider women with fast shipping and fast return. This adjustable spider ring is made of gold plated metal. Find spider jewelry
Vintage Gothic Spider Ring Women's Open Ring Artificial Gem Korean Fashion Adjustable Ring Lover Party Designer Jewelry
Giant Spider Ring 925 Sterling Silver Large Black Widow Spider Black Onyx Gothic
The Historical Significance of Black Widow (Poison) Rings - My Jewelry Repair
The Historical Significance of Black Widow (Poison) Rings - My Jewelry Repair
The Historical Significance of Black Widow (Poison) Rings - My Jewelry Repair
Black Widow Handcrafted Sterling Silver Men's Biker Ring – Clocks and Colours
Giant Spider Ring 925 Sterling Silver Large Black Widow Spider Black Onyx Gothic
Spider Ring - Denmark
Halloween Plastic Black Spider Tiny Joking Toys Decoration Realistic Model - Gags & Practical Jokes - AliExpress
Hip Hop Punk Spider Insect Animal Rings For Women Men Creative Black Spider Inlaid Crystal Ring Gothic Halloween Jewelry Gift - AliExpress
Metal Spider Ring
Giant Spider Ring 925 Sterling Silver Large Black Widow Spider Black Onyx Gothic
Gothic Spider Adjustable Ring