1 Carat 18k Gold over Silver Birthstone and Key Necklace. Unlock your heart and let love in with this sparkling fashion designer-inspired birthstone key pendant. The bail of this pendant shimmers with Clear Diamond accents. Comes with its own 18 inchchain. Great for you or that special someone close to your heart. 18k gold over sterling silver. Please Specify thebirthstone. Select a Birthstone for each Month : January – Garnet. February – Amethyst. March - Aquamarine. April – Diamond. May – Emerald. June- Alexandrite. July – Ruby. August – Peridot. September – Sapphire. October - Rose zircon. November – Citrine. December – Blue Zircon. METAL INFORMATION. 18K Yellow Sterling Silver. Finish Type: 18k Gold over Sterling Silver - Bright. Height: 1/8". Length: 5/8". Width: 3/8". Chain included: Yes. STONE INFORMATION. Garnet (Main). Quantity: 1. Size (mm): 4.500. Cut: Round. Setting: Prong. STONE INFORMATION. Amethyst (Main). Quantity: 1. Size (mm): 4.500. Cut: Round. Setting: Prong. STONE INFORMATION. Aquamarine