Presidium PGI Gem Indicator

The Presidium Gem Indicator (PGI) is the only handheld tester specifically designed for colored gemstones. Using advanced thermal conductivity technology, it can indicate up to 31 different gem types and includes a color input function with 12 common gemstone colors for even greater accuracy. A clear digital LED screen ensures easy-to-read results, while the patented Presidium changeable probe tip delivers reliable performance.

The PGI is a convenient, handheld upgrade from the popular Presidium PGT/CSE Gem Tester (SKU: 156.750), combining proven accuracy with enhanced portability.

Key Features

• Differentiates diamonds from other colored gemstones
• Identifies up to 31 gemstone types
• Color input function with 12 color choices for improved precision
• Thinner 0.45mm retractable probe tests stones as small as 0.2 ct
• Changeable probe tip for extended life
• Built-in metal alert buzzer
• Low battery indicator
• Internal gemstone database with color references
• USB connection for firmware/software updates

Specifications

California Prop 65 Warning:
Cancer and Reproductive Harm. www.P65warnings.ca.gov.