PD on a ring generally signifies palladium. Your ring might be palladium-plated if it's PD written about it. TK316 is brief for TUSK Chrome steel, which indicated that the jewellery will remain stainless and you should have no trouble cleaning it. Halo is a stone environment to the ring, a https://http-139-180-208-7512221.webbuzzfeed.com/37401897/jp88-options