Presidium PGI Gem Indicator Belt Sanding where tarnish removal is needed—a

where tarnish removal is needed—a task ultrasonics are not designed to perform

Pallabrite™ Mirror is a maintenance-free

long-lasting plate

8mm Prong Count 4 Construction Die Struck Karat 14K Tags Bands & Mountings

5-year warranty from A&D

Presidium PGI Gem Indicator Belt Sanding where tarnish removal is needed—aThe Presidium Gem Indicator (PGI) is the only handheld tester specifically designed for colored gemstones. Using advanced thermal conductivity technology, it can identify 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 changeable probe tip delivers reliable, long term performance. The PGI is a