If she is the one, you need to make sure she knows. Express your love with this gorgeous Created Blue Sapphire and Diamond Accent 3-Stone Promise Ring. Mounted in sparkling sterling silver, this enchanting ring features a prong-set, princess-cut, created blue sapphire gemstone (3.5 X 3.5mm) in the center with two prong-set, round-cut diamond side stones (G-H, I2-I3). Polished to brilliance, this dainty ring is the most beautiful way to express your feelings.