Review on 💎 PGT Presidium Gem Tester II - Advanced Gem Testing Device by Doris Tran

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 be. The tester itself is very easy to use. I used it with the included power supply and checked a number of stones set in the jewelry and was able to confirm what type of stones I suspected. I also tested him on some spots that I knew what stones those are and he tested them as well as it should be. Although it has a tiny probe, you'll need a fairly firm hand for very small stones if they're set in jewelry so you don't touch the metal with the probe. My hands aren't as stable as they used to be, so I've found that resting my wrist on a table while holding the probe, allowing me to look for tiny spots in places, helps me hold my hand better could look for stones. Overall I am satisfied with this purchase. and would definitely buy it again and I love using it.