Shenzhen Fable Jewellery Technology Co., Ltd. |
|
White Grading board for Diamond Color Grading FDB-1A
Description:
1. Multiple V-shaped grooves to reduce the reflection on the
diamond surface;
2. Various specifications of round holes are convenient for
measuring thermal conductivity and can assist the use of diamond
grading lamps;
External dimensions:
Application | Diamond Color Grading |
Size | 21.5cm*10.6cm |
Weight | 485g |
Shape | Rectangle |
Color | White |
Type | Auxiliary accessories |