Jewelry maintenance

18K Gold and Platinum jewelry with color gems

I want to buy some jewelry before summer but I feel I should check and organize mine first before I buy. So I opened my jewelry box and checked them out last night. I have many of rings, necklaces and pierces of pair which I bought or got as a gift but most of all are old fashion design.  I'm get old so my taste has been changed. And I don't need to buy similar thing. When I checked all, I also figured out I should clean the gems. So I did it and made selection. This photo shows not all but I decide them to stay with me and going to sell remain in someday. I might get new ring, chain or pendant top by old jewelry if I sell them.
By the way, it's very popular 18K gold and platinum jewely in Japan but it's only Japan I guess. It hardly see under 10K jewelry at shop here in Japan but it's popular 14K or 10K in EU and western countries. Also platinum jewelry doesn't popular in other countries like Japan. In other hand, it's very popular 24K gold in China, India and others. It's very interesting!!