JewelStop 10k Solid Gold Yellow White Or Rose 0.45 mm Box Chain Necklace, Spring Ring - 16 17 18 20 22 24 JewelStop box chain necklace that has been beautifully designed. The yellow gold chain necklace has been crafted in 10k gold. The necklace is yellow gold in color. The yellow gold chain necklace has an unlimited 1 year warranty and 30 days money back guarantee. The chain is 18" long and is 0.45mm in width.