DIALITE MasterGrader Colour Grading Cabinet for Diamonds & Gemstones

The DIALITE MasterGrader is a professional colour grading cabinet designed to provide a standardized daylight viewing environment for accurate evaluation of diamonds and gemstones. Built in accordance with ISO/PAS and CIBJO recommendations, it ensures consistent and reliable grading conditions comparable to GIA lighting standards.

This advanced grading unit features full-spectrum illumination with excellent colour rendering, allowing precise assessment of gemstone colour under controlled neutral grey surroundings. The integrated UV lighting enables both incident and transmitted fluorescence testing, making it a versatile solution for gemological analysis.

With individually switchable illuminants, users can customize lighting conditions to suit specific grading or inspection needs. The internal shelf positions specimens at an optimal distance from the light source, ensuring consistent and reproducible results.

In addition to grading, the DIALITE MasterGrader is also ideal for gemstone photography, thanks to its diffuse and balanced lighting environment.

Constructed with a robust and durable design, this unit is built for long-term professional use in laboratories, jewelry stores, and grading facilities.

Key Features (SEO Keywords)

• Standardized diamond colour grading cabinet (ISO/PAS & CIBJO compliant)
• Full-spectrum lighting comparable to GIA grading standards
  
• Integrated UV fluorescence testing (longwave UV)
  
• Supports incident and transmitted UV light analysis
  
• Shelf for positioning specimen at half distance to lamps
• Neutral grey interior for accurate colour perception
  
• Individually switchable illuminants for flexible use
  
• Ideal for gemstone grading, sorting, and photography
  
• Durable professional design for long-term use
  
• 4x T5 fluorescent / UV longwave lamps

Choose from the following options for colour grading: (4x 8 watt fluorescent lamps)

• Diamonds: 4x 6.500K full-spectrum-daylight
  
• Fancy coloured diamonds: 2x 5.800K full-spectrum-daylight and 2x 6.500K full-spectrum-daylight
  
• Coloured stones: 2x 5.800K full-spectrum-daylight, 1x 4.000K white and 1x 3.000K warm white

For colour grading with UV incident and transmitted light:
Choose from the following options for colour grading with fluorescence test:
(3x 8 watt fluorescent lamps, 1x 8 watt BLB 366nm long-wave UV lamp)

• Diamonds: 1x 5,800K full spectrum daylight and 2x 6,500K full spectrum daylight
  
• Coloured diamonds: 3x 5,800K full spectrum daylight