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 chart, ranging from exceptionally colorless "D" to the warm yellow hues of "Z," to measure this variation. The top grades, D through F, are prized for their clarity, appearing completely colorless. As you move down the scale

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