Our History

In 1976, COOK DIAMONDS opened its doors in the World Trade Center. In addition to its core business of diamond importing, Colleen added gold chains and other fine jewelry to the Company’s inventory during the first two years. With the reputation for honesty COOK DIAMONDS was building, things really began to take shape. The next thirteen years were marked by expansion into the designing and manufacturing of jewelry as well as the addition of colored gemstones to the ever-increasing inventory of the young company. Recognizing the opportunities the wide audience at the World Trade Center provided, the Company doubled the size of its showroom in 1982. Colleen also added brand name watches such as Piaget and Rolex as well as custom watch accessories to further broaden the products available to their customers. It was during this time that Colleen’s youth and enthusiasm, as well as her growing reputation for quality, honesty, and service, began to pay off.

The 80’s were a tough time for the jewelry business, and during this period when many other companies were just trying to “keep their heads above water,” COOK DIAMONDS was actually building up speed. In 1984, Colleen began bringing in more unique European designs as well as several Italian lines, positioning Cook among the most innovative marketers in the industry. COOK DIAMONDS repeat business with customers was unrivaled.

In keeping with her philosophy of leading the way in jewelry trends and offering the most diverse inventory available to their customers, COOK DIAMONDS introduced the Tag Heuer watch line to the Southwest.

Cook became a major source, not only for local jewelers and private customers, but also saw an ever-broadening audience nationally and internationally, especially in Mexico. The fact that the Company was not reliant on the local economy was a major contributor to their continued growth. This, along with the continuing practice of putting profits back into the Company led to the ultimate purchase of their main competition in 1987. The acquisition positioned COOK DIAMONDS as a leading watch supplier in the Southwest, as well as a major loose diamond importer and fine jeweler.

COOK DIAMONDS has continued to expand the Company’s client base to include more international customers and moving into specialty events as well as recognition and incentive programs for major corporations. At its present location, in the World Trade Center, Suite 7802, COOK DIAMONDS has nearly 2000 square feet of prime showroom space.

Recognizing the continuing need for innovative designs and marketing techniques, Colleen traveled extensively to search out unique new styles that give their customers a selection unavailable from most mainstream jewelers.

Cook Diamonds Certificates

Hours of Operation

Weekly Hours

Monday – Friday
10 a.m. – 5 p.m.


December Holiday Hours:

Monday-Friday, 10am-6pm

Saturday December 9, 10am-4pm

Saturday December 16, 10am-4pm

Saturday December 23, 10am-4pm

Sunday December 24(Christmas Eve), 10am-2pm

Monday December 25(Christmas), closed

Tuesday December 26, closed

Stop by today! We have beautiful jewelry gifts and men’s accessories starting at $100, loose diamonds, engagement rings, and an extensive collection of fine jewelry set in gold and platinum. For expedited access to our showroom in the World Trade Center in Dallas,TX,  and to make an appointment, please call us at 214.745.1622.


(214) 745-1622 © 2018 Cook Diamonds · Web Design 2012 VRB Internet Solutions Ltd. and its licensors