Pure Platinum Pt999 Necklace Chain Stamped with pt999 and the stamp in the third image. The stamp in the third image appears to be the Japan Mint inspection mark (see image). I received this as a gift, and I don't know much about it, but I have many necklaces, so I'd like to sell this to someone who knows about platinum. It's very sparkly and has a luxurious feel. I haven't worn it since I received it. This is the only one, so please consider it. ☺︎ Instant purchase is welcome ◎ No box. It was 24cm when placed vertically, so the total chain length is about 48cm. ☺️