This apple green chrysoprase necklace is the ideal autumn jewelry. Goes well in any occasions, from formal events to casual daily wear. Material - Natural chrysoprase, 14K gold filled chain.* I use only genuine precious materials in handmade items, all gemstones and pearls in handmade jewelry are natural and untreated.* Measurements - Length of main stone: 3/8 inch ( 9 mm ). Necklace drop length: 8.25 inches ( 210 mm ). Necklace length: 15.5 inches ( 393 mm ).