Green Jade Gemstone Heart Necklace Silver Jade was prized for its hardness, durability, musical qualities, and beauty. In particular, its subtle, translucent colors and protective qualities caused it to become associated with Chinese conceptions of the soul and immortality. With gold, it was considered to be a symbol of heaven. Chain Size: 18" necklace. - Optional upgrade to 20". - Optional upgrade to 24". Black Waxed Leather Cord: 18″ plus extender. Material Color: Silver. Material Type: Alloy Metal, Stone (color may vary from what is shown). Feature Item / Charm Size: Approx 0.6″. Please Note: Many of our products are listed with optional connectors or size”. The inventory amount indicated by the Default item is the total amount of inventory available for this item including addons / option”.