Gem Tester II

Presidium Gem Tester II (PGT II) is multipurpose gemstone tester

used to check and validate more than 16 of common colored gemstones

Presidium Gem Tester II (PGT II) is multipurpose gemstone tester

used to check and validate more than 16 of common colored gemstones types

including for example ruby, sapphire, topaz, garnet and quartz.

Beside that it can be used to identify diamond and moissanites.

It uses a probe with test head or tip made of metal to perform a test

and based on thermal conductivity of tested gemstones or material the indicator

on its display move to specific range on screen that belong to possible gemstone type.

Presidium Gem Tester II features the industry’s thinnest retractable probe tip (0.6mm)

for testing colored gemstones as small as 0.02 carats.

Coated gemstones can also be generally tested with PGT II.

Gem Tester II Features

• Identifies diamonds / moissanites and most common colored gemstones
• Differentiation between 16 types of gemstones
• Tests both polished and unpolished gemstones
• Retractable thermo-electric probe tip that ensures constant pressure between probe and gemstone
• Industry’s thinnest probe tip (0.6mm) for testing gemstones as small as 0.02 carats
• Metal alert buzzer to ensure probe tip is in contact with gemstone during testing
• Clear and easy-to-read analog dial display
• Built-in Glass and Calibration (CAL) test discs for reference
• No waiting time between tests
• Runs on 2 AA batteries or adapter (included)