NEW Platinum 4mm Rope chain. This exciting 950 Platinum rope chain is available in a variety of lengths including bracelets (in our bracelet section). Our price shown is for the 18" length. This chain requires 4-6 weeks to create and is custom made to order. Available lengths up to 30 inches. A Classic rope in Platinum, you''re going to love this Italian Platinum rope chain. You''ll find the 5mm thick version in our 4-5mm chain section.