This Stunning 16" + 2" Extension Necklace Is Designed With Brilliant Round Russian CZs In A Form Of A Bow And Accented With A Bezel Set Pear Cut Aquamarine Drop Created In High Polished Rhodium set this Ladies Crystal Necklace apart. Rhodium Is From The Platinum Family And Perfect Because It Will Not Tarnish And Is Great For Ladies Allergic To Nickel Found In Sterling Silver, No Problems Wearing This Aquamarine Bow Ladies Crystal Necklace.