Say it with a sparkle and a letter. The Oval Birthstone Initial Necklace pairs a personal birthstone with your favorite initial—because the best stories are yours to tell. Birthstone dimension: 4mm x 6mm; Initial dimension: 8mm-10mm; Cable chain is 14-22 inch long. Materials: 14k gold vermeil - 925 sterling silver as base metal Hypoallergenic, nickel, and lead-free; Tarnish resistant. Birthstones: January - Garnet February - Amethyst March - Aquamarine April - Moissanite May - Emerald June - Alexandrite July - Ruby August - Peridot September - Sapphire October - Pink Tourmaline November - Citrine December - Blue Topaz