Designed for portability, the color grading board can be conveniently carried and used for diamond color comparison at any time and any place
Constructed from composite plastic material, the color grading board ensures long-lasting performance and remains resistant to damage
In addition to diamond appraisal, the color grading board has versatile functionality, suitable for comparing colors of other gemstones and jewelry, expanding its practical
Easy to operate, the color grading board requires placing the diamond or jewelry into the board slot and comparing it with the color grading plate for quick color differentiation
The diamond color grading board offers high precision, enabling accurate comparison of diamond colors to assist jewelry appraisers in their assessments