Presidium Gem Tester II Diamond and Gemstone Tester gifts Includes 9 different size mainspring

Includes 9 different size mainspring sleeves

150mm G Clamp

Size 07 Millgrain Wheel

1 * Digital Multimeter

Item weight: 85g / 3

Presidium Gem Tester II Diamond and Gemstone Tester gifts Includes 9 different size mainspringThe Gem Tester II provides a quick and easy way to identify diamonds moissanite and separates up to 16 common coloured gemstones based on their thermal conductivity with its clear and direct analogue display. Presidium Gem Tester II is a premium portable desktop device that utilizes dual thermal and reflectivity tests as well asPresidium's signature retractable probe tips, which ensures constant pressure between probe and gemstone, to accurately