The Lovery Large Malachite Cz Halo Heart Necklace is in 14K Gold-Plated Sterling Silver and features 1 malachite heart accented with round cubic zirconia in a halo design. The heart measures approximately 20 millimeters - 0.79 inch. This piece has an adjustable chain length of 16-17-18 inches and is finished with a lobster clasp.