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14 de mar. de 2013 · GIA Diamond Grading Scales: The Universal Measure of Quality. The prospect of purchasing a diamond may seem daunting, but through GIA, an unbiased authority on diamonds, you have several handy resources to help you select the highest quality diamond. First up, an overview of the 4Cs: Color, Clarity, Cut, and Carat Weight.
- Gia Diamond Grading Report
- New! Gia Diamond Origin Report
- Gia Diamond Dossier®
The GIA Diamond Grading Report includes an assessment of a diamond’s 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. For standard round brilliant cut diamonds falling in the D-to-Z color range, the report also includes a GIA Cut grade...
The new GIA Diamond Origin Report contains all the unbiased, accurate data of a Diamond Grading Report, plus GIA’s scientific determination of the diamond’s country of origin and a microscopic laser inscription of the report number on the diamond’s girdle. Image-rich, interactive materials accompany the report, telling the story of the diamond’s ho...
The GIA Diamond Dossier offers the same grading information as the GIA Diamond Grading Report but without the plotted diagram. As an added security feature, the Dossier service includes a microscopic laser inscription of the report number on the diamond’s girdle. The GIA laboratory issues the Diamond Dossier for loose, natural diamonds between 0.15...
Cut Scale. Color Scale. Clarity Scale. Find an AGS Jeweler or learn more about diamonds. This diamond rating chart can help you choose the right gem. Learn the color and clarity criteria by which diamonds are graded for valuation purposes.
8 de jul. de 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.
Complete guide to the 4 C's of diamonds; Cut, Color, Clarity, and Carat weight. Including charts and guides showing how diamond grades affect appearance and value.
Hace 1 día · Chart - Estimating a Cut Grade (high res) (10.5MB) (suitable for large format printing) Chart in booklet form, 10 pages. Booklet - Estimating a Cut Grade (6.34 MB) (Revised December 2009) Finish, Culet Size and Girdle Thickness: Categories of the GIA Diamond Cut Grading System
Hace 2 días · Diamond professionals use the grading system developed by GIA in the 1950s, which established the use of four important factors to describe and classify diamonds: Clarity, Color, Cut, and Carat Weight. Diamonds can be fashioned into a variety of shapes and still be beautiful. These are known as the 4Cs.
