mejuri Vermeil Linked Necklace worn several times/some parts are bit tarnished Adjustable chain 16 to 18 inches. Center circle: 12 mm x 2.6 mm. Side oval: 9.15 mm x 7.5 mm. Not to be confused with regular gold plating, our vermeil is a thick layer of 18k solid gold on sterling silver meaning it will last longer. You get the look & feel of gold jewelry at a fraction of the price.