Amethyst is the birthstone for February. These stone
are durable and can be used most any jewelry
application. Amethyst is a member of the quartz
family and has a hardness of 7.
Grading System Used
Color is the most important and complex to grade. Color is made up of three components, hue, saturation and tone. Color will be graded on a scale of 1 to 10 taking these three factors into consideration.
Clarity is graded on a scale of 1 to 10, with 10 being loop clean under a 10X loop.
Brilliance - will be a combination of Cut, Sparkle, light return, Proportion and Crystal. Graded on a scale of 1 to 5, with 5 being the best.
Total Quality Rating - Is the combined score of these 3 with a possible best score of 10
Grading System Used
Color is the most important and complex to grade. Color is made up of three components, hue, saturation and tone. Color will be graded on a scale of 1 to 10 taking these three factors into consideration.
Clarity is graded on a scale of 1 to 10, with 10 being loop clean under a 10X loop.
Brilliance - will be a combination of Cut, Sparkle, light return, Proportion and Crystal. Graded on a scale of 1 to 5, with 5 being the best.
Total Quality Rating - Is the combined score of these 3 with a possible best score of 10
