Presidium Gem Thermal Tester II/Coloured Stone Estimator Dial (PGT II) - TD53

Presidium Portable Refractive Index Meter II (PRIM II) Digital Tester - TR611

Presidium Duo Test Thermal Conductivity Refractive Index Tester (PDT) - TD5310

Agilent Keysight E2655B Probe deskew Performance Verification Part Complete Kit

Presidium Synthetic (Lab Grown) Diamond Screener II (SDS II) Detector - TD5314

AGILENT HP KEYSIGHT 85031A APC-7 VERIFICATION / CALIBRATION KIT

GemPen® Diamond Verification Spare Lens Filter Set (2, 3 & 4) - TG1000A

AGILENT HP KEYSIGHT 85051A 7mm VERIFICATION / CALIBRATION KIT