This classic 1920s design sapphire Art Deco engagement ring is crafted in 18K white gold and features a beautiful natural royal blue sapphire ( September Birthstone ) of 0.80 carat, set in a delicately engraved 4 prong fishtail box setting. Four shimmering round diamonds of F/G color and VS clarity totaling 0.06 carat frame the center blue sapphire stone in a show of brilliance. Measuring 5.5 mm wide at the top of the ring and tapering down to 1.7 mm wide at the bottom of the band, this vintage inspired heirloom Art Deco sapphire engagement ri