NaNa Chic Jewelry Women Swarovski Elements Birthstone Round Cubic Zircon White Gold Plated Necklace 18" + 1.9" Extender Chain Length: 18 inches. Extension chain:1.9 inches Metal Type: surgical stainless steel,nickel free & not easy to break Main Stone: cubic zirconia stone; Color: February birthstone color; Stone Shape: round shape. Best gift choice for daughter, girl friend and anyone you love. Free two days delivery with prime All items are packed with jewelry gift box with "NaNa" LOGO.