This stunning yellow gold Art Deco blue sapphire and diamond engagement ring features a natural blue sapphire ( September Birthstone ) of 0.50 carat set at the center of a unique bead bezel setting, with 2 round brilliant side diamonds totaling 0.04 carat on the sides. Meticulously crafted in your choice of 18K or 14K yellow gold, this classic low dome antique inspired 1920s blue sapphire birthstone engagement ring design was designed with delicate pierced filigree, hand finished and engraved in intricate detail, and measures 6.9 millimeters w