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

Diamond Rings
#ForeverStartsHere

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.

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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.

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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.

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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!

Loose diamonds

Diamond Education

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

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Engagement Ring Inspiration

Follow us on Instagram to see our latest designs and get inspired.

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Why The Diamond Reserve?

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

Kaeleigh Testwuide

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

  • Charlie Belluomo Avatar

    We originally went to The Diamond Reserve to get wedding bands. My fiance's engagement ring was a family heirloom and we ended up resetting it and it looks beautiful. Everyone here has been extremely helpful and accommodating. We will continue to go to The Diamond Reserve for all our jewelry needs in the future!

    Charlie Belluomo 10/09/2020
    Jessica M Avatar

    I had a wonderful experience working with Kaeleigh & Erin at the Diamond Reserve. I visited them to refresh my engagement ring for my 10 year anniversary. The end product was perfect! It was exactly what I wanted and it really made my original Diamond look brand new. Their prices are fair & you get a 100% custom original ring. Can’t wait to work with them again on other pieces of jewelry.

    Jessica M 10/07/2020
  • Katie Flood Avatar

    The Diamond Reserve is fantastic! We worked with Erin on my engagement ring, which turned out beautifully, so we decided to work with her on both wedding bands as well. From the ease of scheduling, communication throughout the entire design process, to the final finished products, everything went off without a hitch!

    I 100% recommend checking out The Diamond Reserve for any of your jewelry needs!!

    Katie Flood 9/21/2020
    Noam Paoletti Avatar

    The Diamond Reserve could not have made the biggest purchase of my life any easier! I worked with Erin over the course of several weeks to find the perfect diamond and custom build a setting round it that my now-fiancee absolutely loves. They were great at working with my budget and answering any and all questions I had until I was completely comfortable and sure about the ring I was getting—and it turned out perfect!

    Noam Paoletti 9/17/2020
  • Kristen L Avatar

    Erin and Kaeleigh are both amazing!! They helped my fiancé design the perfect engagement ring! When we went back for our wedding bands neither of us had any clue what we wanted. Kaeleigh helped us design/find bands that were perfect. They are both such awesome people and they create stunning pieces!

    Kristen L 9/12/2020
    Alex Zuhlke Avatar

    The Diamond Reserve helped me design my fiances engagement ring I couldn't be happier, it's perfect! Definitely the best place for an engagement ring in Denver! The ring was a bit too big so we made an appointment to go in and get it re-sized. They were so helpful and made the experience so easy. This place is truly the best!!

    Alex Zuhlke 7/29/2020
  • Sarah Powell Avatar

    My fiance designed my engagement ring with the help of The Diamond Reserve. I couldn't be happier, it's perfect! He had nothing but good things to say about his experience. The ring was a bit too big so we made an appointment to go in and get it re-sized. They were so helpful and made the experience so easy. This place is truly the best!!

    Sarah Powell 7/28/2020
    Mason McGahen Avatar

    Literally the best experience I could have asked for. Learned a lot and they made everything so easy. Erin took care of me the entire way through. And most importantly, the ring is amazing. My fiance gets constant compliments and it is just gorgeous. If you are looking for a custom ring, they will take care of you. Pricing was just right as well.

    Mason McGahen 7/24/2020
  • Ethan Matthew Avatar

    positive review  Heard about this place from a friend, he gave me their number, I called and talked to Kaeleigh, she received the call and was more than happy to help me find the ring I was looking for! Very good organization, have nothing but good things to say about them.

    Ethan Matthew 10/07/2019
    Courtney Parker Avatar

    Working with The Diamond Reserve is an absolute dream. They make the diamond buying and jewelry design process so easy... and fun! I cannot recommend them enough - if you are in the market for an engagement ring, diamond(s) or any fine jewelry, they are the definitely the best in Colorado and beyond.

    Courtney Parker 9/10/2019
  • Neil Sullenberger Avatar

    Kaeleigh and Erin were both great to work with. We went with The Diamond Reserve for a custom engagement ring and custom wedding bands. They were extremely knowledgeable and helpful throughout the process. I would certainly use The Diamond Reserve again for any future diamond purchases.

    Neil Sullenberger 9/03/2019
    Neil Sullenberger Avatar

    positive review  Kaeleigh and Erin were both great to work with. We went with The Diamond Reserve for a custom engagement ring and custom wedding bands. They were extremely knowledgeable and helpful throughout the process. I would certainly use The Diamond Reserve again for any future diamond purchases.

    Neil Sullenberger 9/03/2019

Diamond Reserve Couples