Art Deco 18K white gold .25 carat diamond ring, size 6-1/4. Measures 7/16" north/south and the band tapers to 3mm at the back, weighs 3 grams. Round faceted European cut diamond measures 4mm x 2.5mm, has I-J color, SI1-SI2 clarity, enlarged culet facet and has beautiful and lively sparkle. The diamond is set into a 6 prong engraved mounting with floral accents on the shoulders and fine milgraining detail. Hallmarked "18K" on the inside of the band. In excellent condition, circa 1920. Very "Boardwalk Empire"! Would make a lovely engagement, anniversary, or wedding ring.