Discussion
thecatsmeowcollectibles
Hello Fellow Jewelry Buffs & Sellers, Is Presidium the only machine made to test for gemstones (all, not just diamonds)? Seems as if they have the market covered. It's a bit too costly for me, and I wanted to ask if any of you use any of these types of machines? Any other manufacturers or any advice is appreciated. Thanks!!
11 months agolast reply 11 months ago