nickel and lead free wholesale jewelry What does I mean by jhpt950, do.253ct in my ring? How much is it worth it?

simple jewelry wholesale PT950 is Platinum 950, Do.253ct, CT is a heavy unit carat, 1 gram = 5 carats, 1 carat = 100 points, 0.253ct is 0.253 carat = 25.3 points, diamond price = weight color clarity cutting work, Diamonds 20 points. Price 4000-8000