Diamond Color Grading Color Tester Tool, GIA Master Set D-M Colorimetric 10 Colors for Jewelry Appraisal Institutions, Training Institutions, Store

Specifications:Material: Cubic ZirconiaShape: RoundColor: WhiteSize (Diameter): 6.5 MMApx. Weight per Piece: 1.0CaratCut Grade: ExcellentPolish: ExcellentSymmetry: Very GoodQuantity: 10 pcsPackage includes:1pc of diamond Color Grading grader set

• 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.
• This color tester kit allows you to detect the color of real diamonds according to the GIA color scale.
• This way, you can easily compare the diamond you want to test with 10 types of gemstones to determine the color of the diamond.
• Each stone in the set is treated with GDTC standard, based on the GIA color grades. ColorLast technology were used to ensure permanent color saturation.
• 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.
• 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.