From James Avery, this ring features:  Honor the moments of life with the Avery Remembrance Ring with Blue Zircon. Ideal for a birthday, anniversary, or other special occasions, blue zircon is the Avery birthstone for the month of December. Sterling silver Blue zircon Each is set with an approx. 3.5mm round faceted blue zircon Approx. 0.25" wide Crafted in America using the world's finest materials.