Vintage Sterling Inlaid Opal Black Onyx Bypass Ring

Gorgeous sterling artisan bypass ring with a triangle inlaid in stripes of lab opal, silver bars and black onyx. The triangle measures 1/2" on each side. The high dome black onyx cabochon measures 7x5 mm. The thick half round ring shank is approx 5.5mm wide. Very well made! The predominant color of the opal is green with pink and blue flash. Signed sterling. Size 7.5 but could be adjusted up or down by a jeweler.