Inspired by a charm from the 1960s, each Calendar pendant is completely custom made. Tell us the month, day, and year of two meaningful dates for you, and we will have it minted it in 10 karat gold and mark it with a diamond, or birthstone of your choice, one date on each side of the charm. A completely modern heirloom. Perfect for a mom or a grandma... the new "mommy" necklace. This charm is double-sided and allows for you to select a date on each side of the charm. The month featured on each side is the actual month from the specified year.