Natural gemstone colors will vary with some being lighter or darker than shown Included: 1 Necklace Chain(s) Jewelry Closure: Lobster Clasp Link Construction: Solid Stone Cut: Round Metal Color: White Chain Length: 18 Inch Chain Width: .9 Millimeters Extender Length: 2 Inch Chain Construction: Cable Care: Wipe Clean Stone Type: 1 Genuine Blue Topaz, 1 Cubic Zirconia Birthstone: December Birthstone Metal: Sterling Silver Necklace Type: Pendant Necklaces Country of Origin: Imported Photos are enlarged to show detail.