Gem Lab


When our Gem Lab was accredited by the American Gem Society in 1961, it was the first in Arkansas. Accredited Gem Labs are rare because of the extremely stringent staffing requirements to qualify. A Certified Gemologist must be on staff at all times, and state-of-the-art gemological testing equipment is required for the lab to be accredited. Even today, there are fewer than 300 Accredited Gem Labs in all of North America.

Underwood's Accredited Gem Lab guarantees real protection for our customers against gemstones that might be artificially treated, dyed or otherwise adulterated, an increasingly common occurrence. And even though we travel all over the world to buy our precious gems at the source, for over 40 years we have had this inflexible rule.

No matter where in the world we travel to buy precious gems, the gems must come back to Fayetteville and undergo our accredited gem lab verification process before they are offered to our customers in the store.


For over 50 years, Underwood's has brought you the highest gemological credentials in the industry. By having the knowledge and expertise to go to the source to buy, no matter where in the world that might be, Underwood's continues to bring you high quality at reasonable prices.

Bill Underwood

  • Certified Gemologist 1961
  • Certified Gemologist Appraiser 1983 

Craig Underwood

  • Certified Gemologist 1988
  • Certified Gemologist Appraiser 1992

Cindy Beil, CGA

  • Certified Gemologist 1997
  • Certified Gemologist Appraiser 1999 

Kary Ennis, CGA

  • Certified Gemologist 2006
  • Certified Gemologist Appraiser 2007