Who We Are | The Diamond Reserve


The Women Behind the Diamonds

Meet the small, female led company upholding our big legacy.


The Women Behind the Diamonds

Meet the small, female led company upholding our big legacy.

An Experience as True as You

Kaeleigh Testwuide | Founder & Diamond Expert

After growing her professional career as a diamond expert with other brokerage firms and jewelers, Kaeleigh was determined to change the way that real people shopped for diamonds. Not only was she inspired to break from the traditional, male dominated industry, but she saw an opportunity to have a greater impact by bringing a private diamond buying experience to Denver. 

In 2015, she rebranded The Diamond Reserve into a female led, custom fine jeweler with a foundation built from integrity. 

Fast forward eight years, 3,000 happy clients and endless proclamations of “I do!”, Kaeleigh and her team have transformed bespoke jewelry in Colorado and beyond. 

When Kaeleigh is not raising her wild-spirited son, Cal, in the Rockies, you can find her right where she belongs; in the Cherry Creek North office hand selecting each and every diamond to ensure that The Diamond Reserve showcases the finest selection of loose GIA certified diamonds. 

As the brand continues to expand, Kaeleigh has made a promise to never stray from The Diamond Reserve’s mission: to provide unparalleled diamond education and one-on-one customer service to see that every client is investing in a forever piece that is a true representation of their love, budget and deepest desires.

Penny Eckel Avatar
Kaeleigh did an amazing job helping us customize an engagement ring and wedding band. She made us feel comfortable during the process and guided us in our decision making, without being pushy. We loved working with her! We had to move our wedding date up a bit and needed the wedding band in a rush. She and her team created a render, made the ring, and shipped it to us in a rush, without any compromise on quality.
Penny Eckel 2/28/2022

Erin Kurtz | Diamond and Jewelry Design Expert

Erin has been a driving force behind The Diamond Reserve since the beginning.

In 2016 she was on-boarded as an Executive Administrator to work alongside Kaeleigh. Six years later she has successfully implemented unparalleled customer service, an authentic client experience and progressive business strategies that have been incremental to the brand’s competitive edge.

You see, diamonds and Erin have always been better together. Yet, it took adopting the brand’s process (and her own design style) for her to realize it. As a laid-back, intentional woman, Erin always thought diamonds were meant for the elite. Until she started approaching her client relationships with a new perspective. By crafting custom pieces with real couples, she has found that diamonds were always meant for anyone who had a story for one. Including herself.

Today you can find her in her element as she warmly greets everyone who walks through the door and creates timeless pieces that perfectly embody the divine human connection we share.

When she is not setting high standards in the office, you can find her pedaling around the city or in her garden with her hands dirty (yes, there is a diamond for that too!).

Natalie Fochtman Avatar
We loved working with Erin at the Diamond Reserve! Erin helped my fiance with the perfect engagement ring for me and now we are working with her again for our bands. She just makes everything so simple and straight forward which was perfect not knowing anything about the jewelry industry. We can't recommend Erin and The Diamond Reserve enough and are looking forward to working with them again in the future!
Natalie Fochtman 2/22/2022

Jillian Goulding | Diamond & Jewelry Design Expert

Jillian came into The Diamond Reserve as a bride-to-be and stayed as a visionary, mission-led diamond expert.

With a background in corporate tech sales, Jillian was inspired by the way The Diamond Reserve was closing the gaps in the local diamond industry through intentional sourcing, thoughtful, bespoke design and a sales strategy rooted in transparency. After having her dream diamond buying experience actualized as a bride, she felt called to bring her experience and energy to the team.

As a Diamond & Jewelry Design Expert, Jillian is devoted to evolving and expanding the long-term impact of the women-led team while giving her clients the same intimate and supportive experience she received on the other end of, “Will you marry me?”.

On her off days when Jillian is not buzzing in and out of client meetings, you can find her fly fishing the mountain streams, chasing powder with the DR girls or planning her own wedding (so really she sees you!).

Maggie Watson Avatar
My fiancé and I have had a wonderful experience working with the Diamond Reserve. We worked with Kaleigh to pick out my gorgeous engagement ring. She was incredible to work with - very knowledgeable and honest. Now we are just months away from the wedding and met with Jillian to pick out wedding bands. Jillian was extremely friendly, helpful and professional. Another great experience. I recommend the Diamond Reserve to all of my friends who are in this chapter of life.
Maggie Watson 2/17/2023