Image 1 of 1 Marquise Step Cut Diamond Necklace 18ct $9,500.00 A natural Marquise Step Cut Diamond .50ct D Colour Hand crafted in 18ct yellow gold with a 1.5mm diamond cut 45cm chain Add To Cart Added! A natural Marquise Step Cut Diamond .50ct D Colour Hand crafted in 18ct yellow gold with a 1.5mm diamond cut 45cm chain