Art Deco .45 Carat Old European Cut Diamond Platinum Vintage Engagement Ring
Circa 1920

Art Deco vintage engagement ring with an approximate .45 carat old European cut diamond center, and .45 carat old European cut and single cut diamond accents within a platinum setting with hand engraving and geometric designs. This ring is a strong example of Art Deco design, which emerged in the 1920s and embraced symmetry, geometry, and clean lines. The center diamond is surrounded by a structured openwork pattern that reflects the era’s interest in architecture. Milgrain edging and precise placement of accent stones show the level of craftsmanship typical of the period. Rings like this were popular during a time when jewelry design shifted from soft curves to bold structure—marking a clear break from earlier styles.