Eternity promise ring, 925 sterling silver, AAAA cubic zirconia. Material type: Silver. Metal stamp: 925 Sterling. Certificate type: GTC. Setting type: Prong setting. Stone and side stone: Zircon. Style: Classic. Main stone size: 4mm*4mm. Ring box: Yes. Ring Size: USA 5/6/7/8/9/10/11/12.