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American Gem Society
A prestigious association of independent jewelers dedicated to maintaining the highest standards of business ethics and professionalism in the jewelry industry.

Cut
The most important determinant in the value of a diamond. A stone can be cut to maximize weight or to maximize performance.

Ideal
A term used to describe the highest grade of cut. However, the phrase is subjective to the company using the term.

Brilliance
The amount of white light returned to the eye when looking into a diamond.

Girdle
Represents the diameter of the diamond where the Trae laser inscription is placed.

Triple Zero
An AGS standard that specifically measures the parameters of polish, proportion and symmetry. A triple zero rating does not guarantee a diamond to sparkle!

Performance
The culmination of a diamonds' individual characteristics working together to deliver the maximum amount of light return and sparkle.

Trae®
Triple beauty in a diamond with exceptional value; an unmatched beauty resulting from three superior characteristics—polish, symmetry and cut—providing superior sparkle and light performance. The AGS document number along with the Long's name is forever inscribed on the diamond's girdle, offering peace-of-mind to you that your heirloom-quality gem matches the quality stated. The decision to purchase a Trae diamond begins a lifelong relationship—not only with your loved one, but also with Long's.