I didn't realize this came with a pack of the jewelry cleaner and you have to add distilled water to make up the jewelry cleaner.  Having gotten it from a jewelry store in the past, it was already made up for me.  Having used Hagerty Jewelry Cleaner in the past I know it works very well in getting grime off dirty jewelry, real and costume.  And it's great for cleaning gems.  I'm just careful not to put anything like pearls, opals or other porous stones in it.