1 Carat Sapphire Engagement Ring in 14K Yellow Gold.  This stunning 1 carat sapphire engagement ring is set in four prongs on a shining, 14k yellow gold band. The natural blue sapphire showcases hues of nautical blue. The oval cut of this precious gemstone offers plenty of brilliance. From the profile, the gallery view has a small window underneath the elevated stone. This ring measures 5.04mm above the finger and can be resized upon request.