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✔ 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.
✔ 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.
✔ Size (Diameter) 6.5 MM; Apx. Weight per Piece 1.0Carat
✔ It is a magic weapon sold by diamond merchants, which can accurately promote the color of diamonds and greatly improve the sales quality.
✔ 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.