Silver Tone Black Dress - Coach Heart Necklace. Charm size is approx. 0.75 x 0.54 x 0.12 inches (HxWxD) including loop. 1.5mm Dainty Cable Chain Necklace: 18 inches with 1 inch extender chain and lobster claw clasp. Small Heart with crystal is approx. 0.46 x 0.55 x 0.11 inches (HxWxD). Dainty and delicate chain allows this necklace to sparkle. PLEASE NOTE: Our products are lead safe, but are not intended for children 14 years and younger.