14k yellow gold, with original packaging Product Details - Gold herringbone bracelet 14k solid gold Width: 3 mm 5 mm Length: 6.5 in Lobster clasp closure Important to note: Herringbone chains are extremely delicate and should be handled as per our recommended care instructions. Remove before physical activity, sleeping, and showering. Be careful not to apply pressure directly to your herringbone piece (like leaning on hard surfaces). When taking on and off, grasp only the clasp and do not pinch or pull the chain. Always lay flat to store.