International Gold Yellow Code
The International Gold Yellow Code (IGYC) is a global standard for classifying and grading the color of gold jewelry. It was developed by the World Gold Council in 1999 as a way to provide consistent and objective color grading for gold products.
The IGYC assigns a numerical value from 1 to 9 to each color grade, with 1 being the lightest and 9 being the darkest. The color grades are based on the Munsell color system, which is a widely used system for measuring and describing colors.
The IGYC color grades are as follows:
* 1 – White
* 2 – Extra Light Yellow
* 3 – Light Yellow
* 4 – Yellow
* 5 – Medium Yellow
* 6 – Dark Yellow
* 7 – Golden Yellow
* 8 – Deep Golden Yellow
* 9 – Very Deep Golden Yellow
The IGYC color grade is typically stamped on the inside of a gold jewelry item. This grade can be used to compare the color of different gold items and to ensure that the color of an item meets the consumer’s expectations.
The IGYC color grading system is used by jewelers, manufacturers, and consumers around the world. It is a valuable tool for ensuring that gold jewelry is consistently and accurately graded for color.
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