Review on Blitz 653 Gem & Jewelry Cleaner Concentrate - 8 Fluid Ounces, Tall Bottle - 1-Pack, Blue by Jerry Gonzalez

I have a great ultrasonic cleaner which I think does an excellent cleaning job. It came with a small container of cleaning cereal, which I think did a great job. That was until I used BLITZ concentrate. This material really made the jewelry cleaner than I have ever seen. I'm so glad I bought 6 packs because I'll be using them quite a bit! I really don't have any negative reviews about it and I'm hard to please! * It cannot be used with semi-precious stones, pearls and opals. But if you are familiar with these things, you know that very little can be used with them. Haven't tried silver yet and will let you know when I do. But so far this is amazing!