Large signet onyx ring in 18 karat yellow gold (750). Signet ring centered on a smooth oval onyx plaque. Vintage men’s ring, circa 1980, France.
Eagle head hallmark and Lucas silversmith hallmark (active in Saint Ouen in the 1980s)
Finger size: 70 UE or 13 US (small resize possible)
Kitten: 17 x 16 mm
Weight: 8.72 gr