Presidium PGT II Gemstone Tester for Diamonds, Moissanite and Coloured Gemstones Tubing The Melting Dish (Crucible) &

The Melting Dish (Crucible) & Handle Set is an indispensable tool set for any metalworker's or jeweler's bench

It offers a long working time

Featuring a powerful magnetic closure

High Speed Steel Gravers

01g resolution for accurate measurements

Presidium PGT II Gemstone Tester for Diamonds, Moissanite and Coloured Gemstones Tubing The Melting Dish (Crucible) &Product Description Compact, sturdy, and portable, this gemstone tester provides a fast way to identify diamonds or moissanite and to separate up to 15 common coloured gemstones by thermal conductivity. The clear analog dial is easy to read, and a retractable probe maintains consistent contact pressure on the stone for reliable results. With a 0. 6mm probe tip, it can test stones as small as 0. 02ct. Coated gemstones can generally be tested as well.