This most unusal piece of Jewish symbolic jewelry contains a Natural Jerusalem Stone engraved with the Hebrew word for Life, Chai, bordered by 925 sterling silver. It also has an engraved number 18 which is the numeric value of the two Hebrew letters, representing the Kabbalistic meaning of Heavenly Blessings. This magnificent Chai is measured at 0.4" x 0.7" and comes with a sterling silver chain of 17.7" in length. You will receive it in a gift box.