Art Deco Platinum, Black Opal, and Diamond Ring

Description:

Art Deco Platinum, Black Opal, and Diamond Ring, set with an oval cabochon black opal measuring approx. 13.20 x 10.70 x 3.40 mm, framed by single-cut diamond melee, millegrain and engraved accents, size 5 1/2, maker's mark.
Estimate $3,000-5,000

Very minor and light surface scratches, loupe visible only. Opal is quite lively. Minor wear commensurate with age to mount.