Our Sterling Silver 3 Stone Custom Simulated Birthstone Heart Drop Mother's Pendant. Made of .925 sterling silver, this custom necklace holds three shimmering heart shaped cubic zirconia stones that you select from 12 colors to best represent your loved ones birthday. Create it as a mother's necklace or a grandmother's necklace for Mother's Day or Christmas! The pendant measures 3/4 of an inch in length and hangs delicately from a silver 16 inch rolo chain with spring ring clasp. This is the perfect gift for Mother's Day, Valentines Day, birthdays, or just to say "I love you!"