Necklaces / Pendants by Hannah Bedford A froth of cascading oxidised silver waves are crested with yellow gold granulation in this sculptural necklace. An elegant 7-piece pendant to add sparkle to your daytime or evening outfit. Features Primary Material : 18ct gold and oxidised silver One of a Kind : No Metal : 18ct gold and sterling silver Hallmarked : Yes Finish : oxidised silver Length (inches) : 17 Cleaning InstructionsOxidisation is a surface treatment given to the silver. Over time this can start to rub back, exposing the silver underneath. This is particularly true of rings, as they receive more everyday wear. This worn affect can be very desirable as silver highlights are added to the piece.