JewelStop 925 Sterling Silver 1 mm Heart Extendable & Adjustable Rope Chain, Lobster Claw - 22", 3.2gr. Ravishing and stunning rope chain necklace brought to you by Jewelstop. The rope chain necklace is crafted in 925 sterling silver stamped and marked. The rope chain is silver in color and has a lobster claw clasp. We offer you 1 year warranty along with 30 days money back guarantee. The product dimensions are: 22" long and 1mm in width. All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.