Diamond Rings

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.

Diamond education icon


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.

Gems icon


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.

Diamond ring icon


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!

Kaeleigh Testwuide


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 Victoria Avatar

    My fiance found the MOST GORGEOUS diamond here for my engagement ring so of course we went back for wedding bands. Just ordered them and can't wait to be blinded by the sparkle!!!!! Thanks!!!

    Erin Victoria 3/19/2019
    Bj Hill Avatar

    The absolute best experience a guy could ask for! They made a nerve racking decision super easy and enjoyable. Many thanks to Kaeleigh and Erin!!

    Bj Hill 4/02/2019
  • Sean Kommerstad Avatar

    Erin and Kaeleigh are an awesome team. Extremely professional and they make the process fun. Worked closely with Erin to design the ring and it turned out amazing! Told her exactly what I was looking for and she found the perfect diamond.

    Sean Kommerstad 6/04/2019
    Caroline Weirich Avatar

    We had the most amazing experience with The Diamond Reserve! The engagement ring was designed with their guidance and it turned out better than I could have expected. Erin also helped us with our wedding bands. She is a wealth of knowledge and always greets you with a smile!

    Caroline Weirich 6/05/2019
  • Joseph Kmetz Avatar

    Kaeleigh and Erin were great to work with and helped me pick out the PERFECT diamond engagement ring for my fiancee. They are ethical and gave me a fair deal on a beautiful ring. I recommend the Diamond Reserve without reservation. Please support this local business and book an appointment ASAP.

    Joseph Kmetz 1/20/2019
    Ross Baker Avatar

    I found a great diamond for our engagement ring. We came back to get our wedding bands here and got exactly what we were looking for.

    Ross Baker 3/19/2019

Diamond Reserve Couples