Black Onyx Vintage Handmade Sterling Silver 925 Ring Size 7

Ring Specifications
Metal: Sterling Silver
Weight: 20.8 g
Size: 7
Condition: Used, but in very good condition
Time period: Vintage
Hallmark: Mexico

Gemstone(s)
Measurements: 24.74 mm x 8.56 mm 
Type: Onyx
Color: Black
Shape: Cabochon