PD on a hoop generally represents palladium. Your ring can be palladium-plated if it has PD penned in excess of it. TK316 is brief for TUSK Chrome steel, which indicated that the jewelry will keep on being stainless and you'll have no problems cleaning it. Halo is a stone environment https://gregorysepbm.liberty-blog.com/37100635/an-unbiased-view-of-jp88