This modern pendant is cast with a 950 platinum front and an 18k yellow gold back, joined and lathe-turned to create an industrial quality. The 16" (40cm) chain alternates 18k yellow gold cable chain with platinum bars that measure .9mm thick x 10mm long. The circular satin finish of the metal highlights the 3.5mm burnish-set diamond. The diamond is .15 carats and GH SI1 quality. It is stamped with the artist's signature on the tag.