DIAMOND COLOR GRADING: UNDERSTANDING THE D-Z SCALE

Diamond Color Grading: Understanding the D-Z Scale

A diamond's tone profoundly impacts its overall luster. The Gemological Institute of America (GIA) established a standardized here chart, ranging from highly colorless "D" to the warm yellow hues of "Z," to determine this spectrum. The higher grades, D through F, are prized for their brilliance, appearing absolutely colorless. As you move down the

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