Miabella Solid 18K Gold Over Sterling Silver Italian 3mm, 4mm, 6mm Diamond-Cut Flat Mariner Link Chain Necklace for Women Men, 16-30 Inch 925 Italy (18, 4mm) : Amazon.co.uk: Fashion
18-24"MEN WOMEN 18K Gold Filled 4mm Gold Puffed Mariner Link Chain Necklace*GFN2 | eBay
18k Gold Thick Link Chain Necklace Set By Elk & Bloom | notonthehighstreet.com