Vintage 10K Onyx Diamond Ring, Art Deco Modern Rectangular Size 6.75

Vintage condition: Good (some minor wear; some oxidation). Cool geometric, vintage, and dainty, art deco/art modern style statement ring! Featuring a 11.5x7.5mm rectangular black Onyx, and a 0.01 carat center Diamond; set in 10K solid yellow gold. The 10K marking has mostly worn off, but the band acid tests as solid 10K gold. This ring is a size 6.75 This ring weighs 3.61g This ring measures 17mm from the front; and 2mm from the back of the band.