An Experience as True as You
Kaeleigh Testwuide | Founder & Diamond Expert
Denver
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 nine years, 3,000 happy clients and endless proclamations of “I do!”, Kaeleigh and her team have transformed bespoke jewelry in Colorado, Texas 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 graded 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.
Erin Kurtz | Director of Operations
Austin
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 at the Austin office 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!).
Kaitlin Rathkamp | Diamond & Jewelry Design Expert
Austin
Meet Kaitlin, a passionate and creative member of The Diamond Reserve’s Austin team. She thrives on helping couples discover unique stones that perfectly capture their love stories. For Kaitlin, nothing compares to seeing the joy and excitement on a client’s face when they find the piece they’ve been dreaming of.
Before joining The Diamond Reserve, Kaitlin owned a yoga studio in Milwaukee, where she built a supportive community rooted in balance, intention, and personal growth. These values seamlessly translate into her work in jewelry, where she approaches each design with mindfulness and creativity. Her yoga practice continues to influence her work, providing a calm and focused mindset that allows her to craft pieces that are as meaningful as they are beautiful.
Outside of her professional life, Kaitlin is an avid cook and adventurous traveler. She loves exploring new cuisines and immersing herself in different cultures, often finding inspiration in the unique traditions and artistry she encounters along the way.
Kaitlin’s ability to blend artistic vision, mindfulness, and a love of exploration makes her an invaluable part of The Diamond Reserve team. She is passionate about creating timeless, one-of-a-kind pieces that resonate with each client’s story and become cherished heirlooms for generations to come.
Sabrina Jandro | Sales Manager
Denver
Meet Sabrina, our spirited Sales Manager with over three years of experience in the diamond industry and a talent for creating custom engagement rings that capture life’s most cherished moments. A Colorado native through and through, Sabrina brings a natural warmth and strong sense of loyalty to every client interaction. Whether she’s guiding someone to their dream ring or leading her team with passion and expertise, Sabrina’s authenticity and dedication shine through.
Known for her trend-savvy eye, Sabrina is always on top of the latest in jewelry design. Her self-proclaimed “shopaholic” side keeps her exploring new styles and innovations, ensuring her clients get modern, timeless pieces they’ll love for decades. She believes that every engagement ring should feel unique yet timeless, reflecting each couple’s story in a way that stays captivating over the years. Her love for finding the best options and prices keeps clients returning for fine jewelry long after the engagement ring process.
Outside of work, Sabrina’s heart belongs to her beloved white Lab, Goose, who keeps her on her toes and adds a little extra joy to her days. She’s also known for discovering the best local restaurants and deals around town, a quality her clients and friends alike admire. To know Sabrina is to know kindness, expertise, and a fierce loyalty that leaves a lasting impression—she’s someone you can always count on for guidance, support, and genuine care.
Lauren Schellenberg | Diamond & Jewelry Design Expert
Denver
Lauren is a dedicated jewelry expert at The Diamond Reserve, where she brings her genuine warmth and attention to detail to every client she meets. Growing up as the oldest sibling of four, Lauren developed a natural knack for taking care of others, a quality that shines in her work. She believes each jewelry piece tells a unique story, and she takes pride in helping clients choose diamonds that beautifully reflect their style and life’s milestones.
Raised in a small town in Western Colorado, Lauren’s love for craftsmanship and small businesses was sparked early on. Coming from a family of small business owners, she connected deeply with The Diamond Reserve’s mission of creating handmade, locally crafted jewelry that celebrates each client’s personal journey. Being part of a close-knit, woman-led team has only strengthened her passion for this work, inspiring her to continually expand her knowledge and appreciation for the artistry behind each custom design.
When Lauren isn’t assisting clients, she’s likely exploring Colorado’s rugged beauty—off-roading through mountain trails, hiking in remote wilderness, or snowmobiling through snow-covered landscapes. Her connection to the outdoors and her natural enthusiasm for life bring an authentic warmth to her role, making each client experience memorable and unique. With Lauren, clients find more than an expert; they find a dedicated guide who cares deeply about helping them create jewelry that feels meaningful and lasting.