Vintage ring in gold, onyx, lapis lazuli and diamonds

Vintage cocktail ring in 18k (750°/°°) gold centered on an onyx cabochon with a diameter of 1.5 cm supported by lapis lazuli fins and round brilliant-cut diamonds with a total weight of 0.4 carats and DEF/VS+ quality. Work from the 1980s.

Finger size 53.5
Gross weight: 11.2 grams