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Gemstone weight tells us how big a gemstone is. Learn more about how we measure carat weight.
There are over 20 different gemstone shapes. Learn more about terminology.
A Stone's Dimensions about extremely important. Learn more about what constitutes "good vs. bad" dimensions
There are thousands of different gemstone colors. Learn more about we describe color in gemology.
Learn about the quality of a gemstone's material by seeing just how clean or included it is.
The quality of a gemstone's cut is extremely important. Learn why.
Gemstones are often treated in order to improve the color and clarity. Learn more about the various different treatments.
Gemstones come from all around the world. Learn about the the countries that they come from.
Learn about the durability of a gemstone.
The Gemstone industry uses "price per carat" when pricing a gemstone. Learn more.
Primarily used for Tanzanite, learn more about how we grade Tanzanites using the GIA Color Scale.