The Diamond Reserve

The Diamond Reserve is Colorado’s most trusted custom jeweler. We specialize in the most brilliant engagement rings, GIA-Certified loose diamonds, and custom jewelry. Unlike retailers, owner Kaeleigh will meet with you one-on-one for personalized diamond consultation.



Kaeleigh Testwuide


After formally working for other diamond brokerage firms and jewelers, Kaeleigh began to understand how important it was for clients to get educated on the dos and don’ts of buying a diamond and designing an engagement ring. She has also acknowledged the need for a private diamond buying experience in Denver. 

In 2015 Kaeleigh re-branded the The Diamond Reserve, making diamond education and the purchasing process accessible and seamless for her clients, making the engagement ring purchasing process not only enjoyable, but memorable as well.

Kaeleigh hand-selects each and every diamond, ensuring that The Diamond Reserve showcases Denver’s finest selection of loose GIA-certified diamonds. Kaeleigh believes each client deserves one-on-one service no matter how simple the engagement ring design and that every engagement ring is timeless, unique, and the perfect fit for the diamond beyond the traditional engagement ring.