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

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. Start getting educated on diamond quality and terminology before booking your private appointment. I am Kaeleigh Testwuide, founder and diamond expert at The Diamond Reserve.
Services
After formally working for other diamond brokerage firms and jewelers, Kaeleigh began to understand how important it was for clients to get educated on the dos and don'ts of buying a diamond and designing an engagement ring. She has also acknowledged the need for a private diamond buying experience in Denver.
Our mission is to provide each and every client with a transparent buying experience accompanied by unparalleled customer service at unbeatable pricing. Buying a diamond, gemstone, or piece of fine jewelry is always a big deal and signifies some of life's most memorable moments. No matter the amount of the purchase, we believe our clients deserve a transparent buying experience that provides them with a proper education.
Micro pave diamonds set in your choice of 14k white, yellow, or rose gold. Each ring is custom made to order. Your ring can be customized in your handwriting or designed by us. We will provide you with a 3D rendering video of your ring for your approval. This ring is perfect for stacking with your wedding set, or worn everyday on the finger of your choice.
Remember, The Diamond Reserve is not a retail store. Instead, we offer private appointments in our exclusive Cherry Creek or 16th Street office. You'll meet with Denver's most trusted diamond broker, who will provide the expert consultation you need to select the diamond that speaks to you and is right for your budget.
What are the advantages of buying from The Diamond Reserve compared to retail jewelers and designers?. No one in Denver can match our selection, pricing, and quality. We offer a unique shopping experience and a level of personal service beyond what you would expect from other professional jewelers.
Reviews (21)
Rebecca Kling
Rebecca Kling
Dec 24, 2021
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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!
Marc Blumenthal
Marc Blumenthal
Dec 14, 2021
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One of the most significant purchases of our life. The journey to design the symbol of our union brought us to Kaeleigh and Erin at The Diamond Reserve. We are so grateful for the knowledge, expertise, and care delivered by this company. Everything from quality, communication, and pricing was above and beyond any other company we interacted with while engagement ring shopping. We will be using The Diamond Reserve again and have been spreading the word to our family and friends. What an exemplary business here in Denver Colorado.
Jane McDonald
Jane McDonald
Dec 14, 2021
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Kaleigh & Erin brought my ring dreams to life! Beautiful office with knowledgeable & friendly staff. I highly recommend for any custom jewelry needs.
Abbey Drevline
Abbey Drevline
Dec 03, 2021
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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!
Sarah Maslo
Sarah Maslo
Nov 26, 2021
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Working with the Diamond Reserve for both my engagement ring and wedding band was a fantastic decision. I wanted a small, simple, lab-grown gemstone ring and they were so respectful of that wish. They designed a set that really matches my personality; I love both my engagement ring and wedding band. Their work is beautiful, and I'd absolutely recommend them to anyone searching for an engagement ring.
Alexandra Hoffman
Alexandra Hoffman
Nov 03, 2021
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We loved working with Erin on designing my engagement ring, so we came back to design our wedding bands with her too! Erin was always so responsive and was able to meet with us during the weekday evenings which was so convenient. Their turnaround times are quick, and the prices for custom rings were lower than what we saw at other jewelry stores for stock settings and wedding bands. Highly, highly recommend!!
Matthew Katzman
Matthew Katzman
Oct 06, 2021
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We worked with Erin at the Diamond Reserve for both the engagement ring and wedding bands. What a spectacular experience. If you need a custom ring in Denver and high quality diamonds, look no further than the Diamond Reserve. Erin showed great attention to detail when helping customize our rings and was super transparent and respectful of our budget. When we approached with a unique and customized request for a wedding band, the team at the Diamond Reserve was eager to make it happen! Erin was responsive, kind and helped us enjoy this unique experience. We loved working with them and would be
Kelly Bolden
Kelly Bolden
Jul 15, 2021
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Can't say enough great things about The Diamond Reserve in cherry creek. Erin was SO knowledgeable and helpful throughout our entire experience of choosing and designing our rings. We looked at quite a few diamond ring suppliers in Denver and they were BY FAR the most impressive. Not only are their diamonds incredible and unique, but their customer service was amazing. Erin was so attentive to us from the moment we first met her until long after we received our rings - which made the whole experience easy, fun and stress-free.
Highly recommend them to anyone looking for diamond rings, no matter
Kimberly E.
Kimberly E.
Jan 14, 2021
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My fiancé and I didn't want to go the traditional route of engagement ring shopping and decided to do it together. We quickly realized we wanted a custom ring. Having worked at Zales for a year I had no interest in low quality diamonds and mass produced products. An engagement ring is an investment and Kaeleigh helped us decide from the best quality. It was literally so hard to choose which diamond was better, because they were ALL so flawless. Kaeleigh was so knowledgeable and warm to work with it took all the pressure off not knowing exactly what we were looking for or even what size diamond
Gary M.
Gary M.
Sep 10, 2020
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Erin was wonderful to work with. She was patient and ensured our ring was absolutely beautiful and exactly what we wanted! We couldn't be happier!
Sheryl S.
Sheryl S.
Feb 28, 2020
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I can't say enough about my experience at the The Diamond Reserve and Kaeleigh! I took in an old cocktail ring that was given to me by my grandmother in her will. I told Kaeligh that I wanted a station necklace with kite shaped mountings and a claw clasp. She immediately knew what I wanted and gave me a great price. She recommended that we make it a flexible length, so it can adjust to what I am wearing. My necklace was done in 2 weeks! And let me tell you... it is stunning and exactly what I wanted.

The Diamond Reserve specializes in custom wedding pieces, but had no problems with
Molly R.
Molly R.
Feb 23, 2019
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Kaeleigh made my engagement ring and our wedding bands! It was so fun working with her and we wouldn't ever go anywhere else. Her prices are very competitive and quality is superb! She specializes in custom jewelry and can make anything you can dream up. I absolutely love my rings and will definitely be returning to her for anniversary gifts, etc!
Melissa S.
Melissa S.
Dec 13, 2018
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Picking a place to purchase a sentimental piece of jewelry such as an engagement ring can be overwhelming, but we are so glad we chose Kaeleigh and the Diamond Reserve. My fiancé and I went about engagement ring shopping together. We decided to get engaged and designed the ring together, with me giving most of the details and updates towards the end of the process. Kaeleigh was helpful and understanding the entire time, and we truly appreciated her input and opinions. My ring has two side stones, and she was able to bring in multiple sets of stones for us to look at and compare with the center
Michael H.
Michael H.
Jan 15, 2018
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Just skip the typical diamond stores and give Kaeleigh a call if you're looking for an engagement ring. She will work within your budget and have a custom ring designed to meet your needs. I was a little worried that something "custom" was going to be out of my price range, but that wasn't the case at all. Even if they don't have the diamond you're looking for, they'll find you one. Process was easy, fun, and the ring was everything my fiancee was looking for.
Kristen M.
Kristen M.
Jan 14, 2018
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From the start of my fiancé's journey of finding the perfect engagement ring The Diamond Reserve has been amazing! He hand picked the diamond with Steve and together they created and designed the most beautiful ring. We also met with Kaleigh to find our bands and she made the whole experience really fun and exciting! Definitely would refer anyone and everyone to The Diamond Reserve!
Jack C.
Jack C.
Oct 16, 2017
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I had been shopping around for engagement rings for about a month before I decided to go to The Diamond Reserve, and Kaeleigh showed me everything.. She sat down with me and showed me everything I needed to know about diamonds and what other companies might do to take advantage of consumers. I had a broad sense of what my girlfriend wanted, but she helped me find the perfect ring and my girlfriend loved it! Not to mention, they work with your budget and help you find the best for what you can afford. They are small and personable, with loads of knowledge in the diamond business. I would not have
Chase M.
Chase M.
Oct 14, 2017
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Kaeleigh and the Diamond Reserve were so helpful helping me design a one of a kind ring for my future wife. I had a very unique design that I didn't even know would be possible, but The Diamond Reserve helped me through every step of the way. They sent computer images of the ring as we worked though the design and we finalized the ring within weeks. It was on my Ffancee's finger in about a month! I'm so happy that we were able to create a one of a kind, reasonably priced ring that will be an heirloom for generations!
Justin C.
Justin C.
Oct 06, 2017
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Kaeleigh was extremely helpful with picking out a ring. She guided me on what to look for within my budget and provided a lot of different options while making me feel comfortable. In addtion, the cost is very comparable to anything you will find at another dealer or even online.
Nofar D.
Nofar D.
Dec 28, 2016
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Steve, Kaeleigh and Erin are the best.
very professional, the service is absolutely comfortable and helpful,
if you want the best Jewelers in Colorado you should definitely visit the store, highly recommended .
Justin D.
Justin D.
Dec 05, 2016
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What else can I say about the staff here. Kayleigh, Erin, and Steve were my personal engagement ring designers and diamond consultants.

I'm not an easy customer- I learned as much as I could about the process and diamonds and really tried to get the absolute best engagement ring for my fiancée.

Kayleigh, Erin, and Steve worked side by side with me and were all for me doing my own research.

They built the perfect ring, it's been a few mi this since I proposed and my fiancée is still getting compliments on a daily basis and is always telling me to look at her ring in different lights
Angela S.
Angela S.
May 03, 2016
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My fiancé didn't want to go to one of the "big box" stores to find the perfect engagement ring for me. Luckily he found The Diamond Reserve! He spent a few weeks looking for the perfect diamond and worked with Steve & Kaeleigh personally to design the perfect custom ring. Steve found just the right diamond that he was looking for at a competitive price. He said that he wouldn't have been able to get me the size of diamond that he did elsewhere and it's GIA certified of course.

He said that Steve's knowledge and experience is invaluable and he was very happy