Birthstone Claddagh necklace features a lab created blue zircon heart along with two rows of Cubic Zirconia stones that are set from wrist to wrist across the top of the pendant. The December Claddagh pendant measures 3/4" wide x 1" tall, including the jump ring and the chain bail, and includes an 18" long sterling silver chain.The December birthstone necklace is made by Solvar Jewelry in Dublin, Ireland and it is gift boxed with a Claddagh history card, complements of The Irish Gift House.