Art Deco Onyx and Diamond Ring of Platinum

A striking Art Deco platinum ring from the 1920s, featuring bold stripes of black onyx contrasted with an elegant array of glittery diamonds. The rectangular cocktail ring features two bezel set old European cut diamonds measuring 0.48ct and 0.52ct each of (H-I color, SI2 clarity) with 34 single cut diamonds with an estimated weight of 0.51ctw. The graphic geometry, monochrome palette, and architectural precision capture the essence of Deco design—sleek, modern, and unapologetically glamorous.

The ring’s face measures approximately 0.8 inches by 0.45 inches, and it is currently a size 6.5 (resizable upon request for an additional charge). The ring weighs 3.77 grams.

The platinum has been professionally verified using XRF (X-ray fluorescence) analysis and confirmed with jeweler’s acid testing, authenticating its composition. In excellent vintage condition, this ring is a sophisticated example of 1920s craftsmanship, perfect for collectors who appreciate the dramatic contrasts and streamlined elegance of the Art Deco era.

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