Diamond Education

diamond education

Diamond Anatomy & Cut Quality As per the American Gem Society

Did you know that Dan Field is the only American Gem Society Member in the Redding Area? What does this mean to you?

Well, founded in 1931, GIA’s mission is to protect all buyers and sellers of gemstones by setting and maintaining the standards used to evaluate gemstone quality. The institute does so through research, gem identification and diamond grading services and a variety of educational programs. Through its world-renowned library and subject experts, GIA acts as a resource of gem and jewelry information for the trade, the public and worldwide media outlets.

Understanding the 4 C’s of Diamonds Shopping

Knowledge is power. So we present you with a healthy dose of learning on the 4C’s. What are the 4C’s, well you will have to watch the videos. But I assure that you will be much wiser in your hunt for that special diamond for you loved one. 

Beautiful. Rare. Cherished. Diamonds are the most sought-after gems on earth. Each one is unique. And each has specific qualities that establish its value. A GIA Diamond Grading Report gives you clear, comprehensive understanding of those qualities.

As creator of the Diamond 4Cs and the International Diamond Grading System™, GIA is not only a global authority, but the world’s trusted source for unbiased assessment.


Clarity grades assess the number, size, relief, and position of inclusions and blemishes.


Cut (proportions, symmetry, and polish) is a measure of how a diamond’s facets interact with light.


The less color, the higher the grade. Even the slightest hint can make a dramatic difference in value.

Carat (Size)

Rarity means larger diamonds of the same quality are worth more per carat.