What do the grades B and C indicate? Are these the only grades?
There are many different types of stone grading systems available and being used today. Some organizations have well established widely respected standards for judging qualities in diamonds; however, there are few similarly accepted standards for judging other stones. Fire Mountain Gems and Beads is a charter member of the AGTA (American Gem Trade Association) and adheres to their standards for enhancement codes for all gemstones. The scale starts with 'A' as the highest and works down the alphabet as the grade changes in quality.
We grade gemstones by the quality of their features. Generally speaking, the higher graded stones will have the following characteristics:
Vivid, saturated colors; deeper colors (unless the depth of color is so great as to make the stone appear blackish)
Fewer and smaller inclusions (unless the inclusions contribute in a positive manner to the appearance of the stone)
Few or no enhancements
When choosing a gemstone, we hope you will look for the one that will give you the most enjoyment.