14k Curved Bar Cubic Zirconia With 2inch Ext Necklace - 18 Inch - in 14k Yellow Gold - Gift ready jewelry box included - Charm/Element Width: 24.43 mm - Charm/Element Length: 2.5 mm - Length of Item: 20 in - Chain Length: 18 in - Chain Width: 0.48 mm - Clasp /Connector: Spring Ring - Finish: Polished - Extender Length: 2 in - Clasp Width (Male end): 3.16 mm - Clasp Width (Female end): 5 mm - ::: [ Potential Enhancement Methods: cubic zirconia ] - Synthetic. Some are covered with a product that makes the stone more durable. ::: [ Care and Handling: cubic zirconia ] - Clean with warm soapy water and a soft cloth. :::