Handheld presidium gem tester +3x AAA batt (model PGI) Discounts apply 4% lighter

4% lighter

Do not confuse this with the many copies

you just have to recognise the patterns of lines (see the example in the picture)

Power: Takes 3 size LR44 batteries (included)

Handheld presidium gem tester +3x AAA batt (model PGI) Discounts apply 4% lighterSummary Handheld model. The first gem tester that is truly pocket size, with the finest probe tip, will test stones down to 2pts in size. Works on any stone, loose or mounted, even uncut. Instruction manual (pdf) Video (youtube) Video Details replaceable probe (i. e. if you break it) latest technology, this is the only tester of this sophistication that is pen size, operated with one hand, slips into a pouch, truly pocket size super fast warm up time