Deeply Set Velvet Green Cabochon Silver Tone Link Necklace has Four Leaf Clover Drop on it's extension chain. So I guess this has a bit of the Luck of the Irish attached to it in some way. The necklace measures approximately 16 3/8 inch wearable, adjustable downwards about 3 inches. The widest part is just over 3/4 inch. Great designer looking piece.