Who We Are
Squarediamonds.com is a division of Security Company Incorporated. Security Company Incorporated is an 81 year dealer in fine diamonds and jewelry headquartered in Duluth, Minnesota.Although our buying network stretches the entire world our overhead is kept to a minimum in small town Northern Minnesota.

We are members of the American Gem Society and strive to exceed their rigid standards. Each and every loose diamond we sell is both lab graded and then inspected in our state of the art lab to insure the diamond matches the lab documentation.