Review on 🔍 Authenticity Verifier: Presidium Adamas Diamond and Moissanite Tester for Diamond Authentication by Doris Tran

This is my first portable tester. It works well and I haven't had any issues with inconsistent results. I calibrate it before each use and follow proper testing procedures very carefully. Proper calibration and care in measurement are the keys to the successful use of this device. The downside, as some others have pointed out, is the build quality (fit and finish). The plastic pieces don't fit together well, although as others have pointed out, they didn't come loose. The soft end that closes the connection to the computer is always disconnected. Overall I think this is a good device that can last for many years with proper use and care. Yes, it's also a little pricey, but it can pay for itself quickly. So two thumbs up!