My mother bought this three-strand pearl necklace in Japan in the mid-1950s. The clasp is silver and has a lovely setting. The necklace was originally a choker, but since it needs to be restrung (and many pearls are missing), I wanted to add pearls to make it a longer three-strand necklace. Any idea where I can buy more pearls and have them restrung? I am going to Australia next month and was wondering if I would have better luck there finding someone to repair the necklace. I appreciate any feedback.