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14 Μαρ 2013 · Learn how GIA created the 4Cs (Color, Clarity, Cut and Carat Weight) as a universal method for establishing the quality of any diamond, anywhere in the world. See the latest scales and videos on the 4Cs from GIA, an unbiased authority on diamonds.
- GIA Grading
The GIA Diamond Grading Report. This report uses the...
- Clarity
The GIA Diamond Clarity Scale is the global language for...
- Diamond Color Chart
In this post, you can learn about and download the official...
- GIA 4Cs Cut
The GIA Diamond Cut Grading System for standard round...
- GIA Grading
8 Ιουλ 2015 · In this post, you can learn about and download the official GIA Color Scale, work with an interactive diamond color chart to see the relationship between grades and colors, and watch a useful GIA Diamond Color Grading video to see how GIA evaluates diamond color.
Learn how to use the GIA Cut Grading System to estimate and evaluate the cut quality of diamonds. Download charts and booklets that summarize the system, show examples, and explain the parameters and values.
The GIA Diamond Grading Report. This report uses the universally accepted GIA standards to determine a natural diamond’s shape, color, clarity, cut and carat weight – as well as proportions, finish and treatments. It also includes a plotted diagram which maps your diamond, identifying its unique characteristics. The GIA Diamond Origin Report.
The GIA Diamond Grading Report includes an assessment of the 4Cs – Color, Clarity, Cut, and Carat Weight – along with a plotted diagram of its clarity characteristics and a graphic representation of the diamond’s proportions.
The GIA Diamond Cut Grading System for standard round brilliants in the D-to-Z color range is based on the assessment of seven components. The first three — brightness (the total light reflected from a diamond), fire (the dispersion of light into the colors of the spectrum), and scintillation (the pattern of light and dark areas and the ...
30 Αυγ 2024 · To provide shoppers with an understanding of each diamond’s color level, grading entities like the Gemological Institute Of America (GIA) use a diamond color chart to judge diamonds based on their appearance and give each stone a color grade within a given scale.
