The domed spider web setting of this Art Deco sapphire antique engagement ring casts an alluring spell. The platinum band of this Art Deco antique sapphire engagement ring is a stunning combination of pierced angular cutouts and textured Xs and fronds. Tucked amidst this spellbinding display are eighteen full and single cut diamonds. The cupola top setting captures a 0.97-carat round blue sapphire in its center. Circa 1920.