Our offices are open for private diamond viewing and consultations. We are also offering virtual consultations.

Schedule a Virtual Appointment Schedule a Private In-Person Appointment

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.

The Process

At The Diamond Reserve, we create custom engagement rings while providing our clients with one-on-one service and transparent expert diamond education.

Educate

We educate each and every one of our clients on the 4C’s of diamonds and more. It is our mission for you to feel educated and confident when selecting your diamond.

Select

Our team will guide you in selecting the diamond or gemstone that fits your needs and budget, answering all of your questions, and making sure you get the best price.

Create

Once you have approved the 3D renderings our bench man begins to make the magic! All our engagement rings are handmade right here in Colorado to the finest quality.

Questions? Let's talk!

Diamond Education

Start getting educated on diamond quality and terminology before booking your private appointment.

Engagement Ring Inspiration

Why The Diamond Reserve?

See what makes The Diamond Reserve experience unparalleled to the retailers.

Hello,

I am Kaeleigh Testwuide, founder and diamond expert at The Diamond Reserve. Thank you so much for visiting with us! My number one goal is to get you educated on all the dos and don’ts of buying a diamond, making sure you get the best diamond for the best value!

There is so much information out there regarding diamonds and a lot of mistrust when buying a diamond. At The Diamond Reserve we will give you the truth, answer all of your questions, and ensure that you feel confident when you select a diamond. Buying a diamond and an engagement ring does not need to be stressful, it should be fun and exciting, and that is exactly how it feels when you work with us.

Are you thinking about popping THE question, upgrading your diamond, redesigning your setting, or looking for a special gift? Send me an email and I will work with you personally to make sure we send you off feeling confident and excited with your purchase!

Yours Truly,

Kaeleigh Testwuide

Who's Talking About Us

Erin is the best! We loved working w/ The Diamond Reserve. Made ring shopping so easy and fun. Was such a success with the engagement ring we went back and used them for the wedding band too. Thank you guys!!
Sam 7/12/2022

Erin is always so easy to work with! She makes your vision come to life. My fiancé made my custom engagement ring with Erin and it turned out better than I could even imagine. We are now working with Erin to make our custom wedding bands and we cannot wait to see how they turn out! Highly recommend using The Diamond Reserve for all of your custom jewelry needs.
Brittany Whittaker 7/08/2022
Erin is beyond amazing, sweet and kind! She helped my fiance find the perfect ring that I am absolutely in love with and helped me pick the perfect wedding band. Erin is knowledgeable and definitely knows what she's doing. Her eye for detail is incredible! I will be doing a few more things in the future with the Diamond Reserve!
devora magner 7/01/2022

Erin and the team at Diamond Reserve have been great from the start of the process. Shopping for the perfect engagement ring is stressful, but not here! There is no pressure, no frills, just help picking the right ring for your significant other. They really listen to what YOU want. We enjoyed the experience so much that we are back for our wedding bands! Thank you!
Devin McLean 3/07/2022
Erin and her staff are absolutely a joy to work with. They made the diamond selection process a fun adventure. Erin educated us on the all relevant details, in a pressure-free environment, and took our feedback to heart. My fiance's tastes and preferences were taken into consideration and Erin found us the best possible diamond at an incredible fair price point. We will look back on this process with no stress and plenty of smiles.
Stephen Manning 3/03/2022

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
I had a great experience working with Erin and The Diamond Reserve. I was able to tell Erin what I wanted and what I knew my fiance would like and she helped to create the perfect engagement ring. We're now working on our wedding bands and are having the same helpful, professional experience.
Will Wallesen 2/17/2022

I can't express how impressed we are with The Diamond Reserve! My fiance worked with Erin to create the engagement ring of my dreams, and I had absolutely NO idea! Now, we are working with Erin on our wedding bands, and have had a great experience. She is so fun to work with, answers all your questions, and ensures that you're getting exactly what you want. We can't recommend her and The Diamond Reserve enough!
Kaylee Caldwell 2/09/2022
We love The Diamond Reserve! My fiancé and I were so pleased with Erin. She made picking out engagement bands so easy and stress free. She really took the time to understand exactly what we wanted and helped create it for us. We will forever be grateful to The Diamond Reserve for making us the perfect wedding bands.
Maggie & Jon
Maggie Riedel 1/25/2022

I loved my experience with the Diamond Reserve! The staff is very friendly and knowledgeable. I originally got an engagement ring through the Diamond Reserve and I was so satisfied with the way they placed my grandmother's diamond that we are now back to get wedding bands! I would highly recommend the Diamond Reserve!
Payton Cain 1/15/2022
My Fiancé and I worked with The Diamond Reserve for both my engagement ring and our wedding bands. They are so knowledgeable, kind, and very patient. Erin made the wedding band buying process so easy and was willing to meet with me multiple times while I was making my decision. We will definitely be working with them again in the future!
Rebecca Kling 12/21/2021

Timeless, elegant, and personable. The Diamond Reserve took my lifetime vision of my engagement ring and turned my dream into a reality. Not a day goes by that I don’t look at my ring and admire every detail that was put into it. I also had such a great experience with Erin and picking out our wedding bands!! The whole team is amazing and I highly recommended!
Abbey Drevline 11/23/2021