Vintage 9k yellow gold onyx signet ring from Birmingham, England c 1991.
Great vintage condition
Size: 7.25 - 7.5 resizable
Weight: 3 grams
Band: 10.6 mm (front), 2.1 mm (back)
Onyx: 8.7 mm x 6.5 mm x oval cut
Hallmarks: 375 for 9k, anchor for Birmingham, "R" for 1991, "JH" for makers' mark