Fantastic 9ct yellow gold ball on this vintage sterling silver ring sating from the 1980's. The silver & gold has been tested as there are no metal marks.
Size UK N, US 6.5 or internal diameter 1.692 cm or 0.7 inches,
Max width 0.8 cm or 0.3 inches.
Weight 5.1 grams or 3.3 penny weight.