A+ Laboratory Equipment
Below is a partial list of laboratory equipment that A+ Associates uses to evaluate your jewelry and stones.
- Sarin proportion machine with DiaVision Software
- Olympus Tri-Ocular microscope
- Touchstone and acids
- Fiber-optic light unit
- GIA gem set color grading system
- GemDialogue color comparison set
- Downing opal brightness comparison set
- Hanneman gem separation filters
- Ultraviolet light unit
- Austron digital colorimeter
- Heavy liquids
- Video imaging system with attached TV monitor
- Electronic carat scale by Mettler with S.G. adapter
- GIA Mark IV microscope
- Electronic Leveridge gauge
- Thermal conductivity tester
- GIA certified master diamonds
- GIA/Drucker pearl grading comparison set
- GIA hot point unit
- Chelsea emerald filter
- Diamond light
- Refractometer
- Electronic gram and dwt scale
- Digital Cameras
- Portalab portable laboratory
- Hand-held spectroscope


