Vintage One Of One Modernist Sterling Silver Black Stone Ring, Geometric Silver Cutout Gemstone Ring, Thick Silver Band, Custom, 7 3/4 US

Amazing one of one modernist sterling silver ring made by experimental jewelry maker Nina Dinoff. This piece is custom made and features a 10.5mm straight silver band with a rectangular cutout ring face and an offset black gemstone in a square bezel setting. We are unsure of the exact nature of the stone, but it's likely obsidian, onyx, or jet. No hallmarks and in great vintage condition with some wear and minor discoloration.

Ring size 7 3/4 US
Ring face: 1" L x 5/8" W
Stone: 9mm x 9mm
Weight: 8.7 grams