Diamond Connection

We invite you to browse 

our extensive inventory of 

50,000+ certified, conflict-free loose diamonds.

Be sure to bookmark our site as well. 

As our selection is updated every two weeks


If you have any questions 

or need to locate a stone 

with specific qualifications, 

visit our Contact Us form

or email us at


or call us at 

1 (541) 680-6029

Four factors are used to judge the quality of diamonds. These are the “4 C's”: Cut, Clarity, Color and Carat weight. Here you will learn what each of the C's means and how it affects the value of the diamond. While it takes training to actually see these factors, if you know what they mean, you can make an informed choice in selecting your diamond.

Diameter: The width of the diamond through the girdle.

Table: The largest facet at the top.

Crown: The top part from the girdle to the table.

Girdle: The narrow band around the widest part of a diamond.

Pavilion: The bottom part from the girdle to the culet.

Culet: The facet at the bottom tip. The preferred culet is not visible to the naked eye (graded “small” or “none”).