Presidium Gem Indicator Coloured Gemstone Tester Mizar M-24 Precious Metal Tester Each shape includes 10 shapes

Each shape includes 10 shapes of CZs

18ct White Hard - 855-885°C

2 Rectangluar grooves: 3

Enhanced functionality and usability

21 hole - Carat sizes are: 0

Presidium Gem Indicator Coloured Gemstone Tester Mizar M-24 Precious Metal Tester Each shape includes 10 shapesThe Presidium Gem Indicator is the industry's one and only handheld digital tester for coloured gemstones, for application in 31 different types of gemstones. PRESIDIUM Gem Indicator is the industry's only multi gemstone tester which utilizes the properties of electro thermal conductivity and Presidium's signature, retractable probe tips, which maintain consistent pressure against the gemstone during testing, to accurately verify the authenticity of