💎 PGT Presidium Gem Tester II - Advanced Gem Testing Device Review

I regret not returning this item. At first I received the presidium without a probe, but the manufacturer quickly solved this problem. Thank you! Then it worked almost normally for some time, just enough to get past the return window, then it became impossible to calibrate. Taking into account all the recommendations (cleaning the probe on paper, working in a clean environment without disturbing the airflow, etc.), the needle only passes halfway when trying to calibrate. Sometimes it goes into…

Uncalibrated. The lens calibration works well, but the glass panel is not centered. Well actually it starts in the middle and then goes down. Because of this, it simply doesn't provide accurate results. I rely on accuracy because I work part-time as an online jewelry seller. I checked my engagement ring and it shows outside the diamond area. I know what you're thinking. My husband is a cheapskate, but he didn't skimp on my jewelry. Also, I was there when he bought it at the national jewelry…

Let me start by testing it to make sure it is calibrated when you first receive it as I have read many reviews where the first person is not was sent and should have been sent back and I ran into this problem myself. It can only be a problem with the delivery of such a delicate instrument and not the item itself. The first one I received was not calibrated and the needle seemed to be stuck. It was very easy to swap it out and the second one was in perfect condition and calibrated as it should…