Buying a new necklace

I'm getting sick of wearing the gold chain that my mother-in-law gave me. Nothing against the design. I just want a change of metal, that's it. Since hubby proposed that we go to Jusco later, i'd like to go check out those platinum chains at those jewelry shops. It's been a long time since i last set foot inside one. The last time i went there was to select a wedding gift for my cousin, and i bought her a very pretty platinum necklace together with a diamond pendant. Though many people say platinum looks exactly like silver, but what the heck. There are many who buys precious metals like gold and silver as an investment. If i see a design that i like, i'll buy it.