Antique Art Deco Onyx Marcasite Cocktail Ring, c. 1920

A midnight sky captured in geometric precision, this French Art Deco cocktail ring is bold, sophisticated, and undeniably magnetic. A sleek rectangle of onyx draws the eye like an inky pool of mystery, while a constellation of sparkling marcasites forms a glittering halo around its edges. Every facet reflects the elegance and glamour of the Roaring Twenties, where jazz notes danced through smoky rooms, and every gesture held the promise of intrigue.

Crafted in silver and bearing the French boar’s head hallmark, this stunning piece dates to around 1920. The onyx centerpiece measures 20 mm by 13.3 mm with a subtle depth of 2.7 mm, perfectly framed by 98 marcasites that catch the light with every movement. The overall dimensions of the ring are 25 mm by 20 mm with a height of 6.5 mm, while the band itself measures 2.2 mm in width. Sized at a US 8, this ring weighs 8.6 grams—substantial enough to make a statement, yet refined enough for effortless elegance.

A perfect blend of Art Deco drama and refinement, this piece is an echo of the era’s bold spirit, ready to accompany its wearer from daylight’s edge into the heart of night.

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Please note that if you are ordering a ring and you’d like to have it re-sized by us, you need to check with us before ordering to see if this can be done and what the cost will be. We generally offer free re-sizing within one full size up or down for no additional charge, but there may sometimes be a charge for the materials, ie: gold. Some rings cannot be re-sized by us, such as eternity bands and heavy signet rings. We are happy to let you know if we can resize any ring and to quote you a price on re-sizings over one full size. Re-sized rings are not eligible for return, but may be exchanged at our discretion.

ITEM ID: RG0324040VS