14K Gold Round Box Chain Necklace 1.8mm 2.4mm 3mm high Etsy 14K Yellow Gold Rounded Box Chain JenniferAlfano.com High Polish and Diamond Cut Round Box Chain in Yellow 14K Gold Solid Box Chain 14K Yellow Gold 16" Length 1mm Jared 14K Yellow Gold Filled 1.17mm Round Box Chain 6.5 7 7.5 8 Inch Etsy Jewelry 14k Yellow Gold 18 Box Chain Necklace 1mm 197 Grams Poshmark. This round box chain comes in 14k yellow gold and has a width of 1. 8 millimeters. Product Details: Chain Information : Metal : 14K Yellow Gold Chain Type : Box Clasp : Lobster Clasp Width : 1. 80 mm Approximate Weight: Size Weight 16'' 3. 1 grams 18'' 3. 5 grams 20'' 3. 9 grams 24'' 4. 7 grams