Description:

• · l The colorimetric stone is gradually yellow from D ~ m, with a diameter of 1ct and a color grading standard (10 grains), and its material is zircon.
• · l It is suitable for jewelry appraisal institutions, training institutions, store grading control, etc., as a reference teaching tool for naked diamond color appraisal diamond grading examination.
• · l It is a magic weapon sold by diamond merchants, which can accurately promote the color of diamonds and greatly improve the sales quality.

Specifications:

• · l Material: Cubic Zirconia 
• · l Shape: Round 
• · l Color: White
• · l Size (Diameter): 6.5 MM
• · l Apx. Weight per Piece: 1.0Carat
• · l Cut Grade: Excellent
• · l Polish: Excellent
• · l Symmetry: Very Good

Feature:

• · l Each gem in this group is 1.00ct cubic zirconia (6.5mm), which can accurately describe the specific color in the D-M diamond color range.
• · l This color tester kit allows you to detect the color of real diamonds according to the GIA color scale.
• · l This way, you can easily compare the diamond you want to test with 10 types of gemstones to determine the color of the diamond.

Package includes: 
1pc of diamond Color Grading grader set