Gem & Jewelry Cleaner Concentrate 8 Oz Gem and Jewelry Cleaner Concentrate is a concentrated liquid that you mix with water to clean jewelry in jewelry cleaning machines and ultrasonic jewelry cleaning machines. This special, non-toxic jewelry cleaner concentrate is for all types of cleaning machines! There are easy to use directions and a small amount will give you numerous uses. Try an 8 Oz. bottle today, or the goliath 1 Gallon bottle. Safe, non-toxic...this stuff works well as a refill for almost any jewelry cleaning machine. The advantages of this product are entirely up to you. This clear concentrate has a pleasant odor and smell, and won't harm your eyes, hands, body or pets! It can be used as a dip, in a machine, a spray bottle, and it can even remove some stains from clothing! Use this cleaner on gold, platinum, diamond, ruby, sapphire, topaz, amethyst, aquamarine, garnet, peridot and other non-porous precious and semi-precious gem jewelry!