18 karat yellow gold, cobalt chrome and diamond “Arches” marquise earrings designed and created by Sarah Graham Metalsmithing. The earrings have a marquise shape and consist of cobalt chrome on the top half and 18 karat yellow gold “Arches” elements on the bottom half. The bottom point of each earring is set with three round brilliant cut diamonds. The six diamonds together weigh 0.12 carats and are G color and SI clarity. The earrings have 18 karat yellow gold shepherd hook earwires. The style number is 48E1-1-1GS.