Rhodium over sterling silver and 18k yellow gold over sterling silver herringbone chain necklace set of two. In this set you will receive 1 rhodium over sterling silver herringbone chain necklace. Measures approximately 1/16 of an inch in width, 3mm gauge, and has a lobster claw clasp. 1 18k yellow gold over sterling silver herringbone chain necklace. Measures approximately 1/16 of an inch in width, 3mm gauge, and has a lobster claw clasp. Both chain necklaces measure 18 inches in length.