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CDI Diamonds & Jewelry Columbus, Ohio

CDI Diamonds & Jewelry is family owned and operated by Matt Carlozzi Jr. with his son Matt III since 2001 as the former Bernie Helmick Diamonds and Gold. CDI provides a customer experience based on education, selection, expertise and a no pressure approach. We take every effort to stay ahead of the curve on both style and technology. Our diamond viewer allows our customers to view their diamond on a large HD screen instead of a microscope or jewelers loop. CDI offers one of Columbus’s most affordable selection of engagement rings. We carry bridal jewelry lines from the following designers Carrizza, Romance, Mars, and CDI exclusive collection of wedding bands. Also, CDI has a large inventory of diamonds to meet any budget or style. Our fashion jewelry line includes Lafonn and Elle along with the CDI Diamond Fashion Collection. CDI provides our customers the additional following services jewelry repair appraisals, and financing.

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Karriann Wood
Karriann Wood
14:55 19 Apr 19
Matt and Ernie are so amazing! They had the exact necklace I wanted, and I walked out with another diamond necklace and a unique diamond ring! Their selection was beautiful and their customer service was outstanding! Also, they sized my ring really fast so I could take it on vacation! Matt and Ernie both treated me like I’ve known them for years! I highly recommend CDI for all your jewelry needs!
Lisa P
Lisa P
16:32 22 Mar 19
Matt was very helpful in assisting my fiance in choosing my engagement ring, which I often receive compliments on. They knew I wanted something simple, yet the ring is so elegant and unique. We could not have asked for a better product or service. We recently visited again to choose wedding bands, and there is a large selection of jewelry for other occasions as well. I would highly recommend CDI.
Kristi Samples
Kristi Samples
01:57 15 Mar 19
Everyone at CDI has always been helpful, friendly and professional. Their beautiful selection of jewelry is top notch and they always go above and beyond my expectations with customer service. I have had multiple rings sized and cleaned and each time they come back looking brand new. 13 years ago my husband and I picked out our wedding rings and bands and we have been going back for any of our jewelry wishes since. I highly recommend CDI to anyone looking for a beautiful piece of jewelry and terrific customer service.
Kelly Miller
Kelly Miller
17:50 24 Feb 19
GREAT experience! Highly recommend! If you are looking for an engagement ring, need expert jewelry advice, want patience in selecting the perfect diamond or band, or are looking for any type of jewelry or repair, this is your place. We went to all the big name places and am so grateful to have run into CDI. My fiance and I had picked out an engagement ring online together and it was pretty, but not exactly what I had in mind. So, we decided to go a different route. I had received my mom's diamond from her engagement ring, and had a pair of diamond earrings from her as a gift, both in yellow gold. My heart was set on a white gold, trellis-style 3-stone ring all along, so I spoke to the manager, Ernie, at CDI and he found the perfect mounting online to set my 3 stones in. It only took about 1 week to receive my new ring, it was extremely reasonably priced for the mounting and labor, and is ABSOLUTE GORGEOUS!!! Everyone at CDI is friendly, professional, knowledgeable, and you never feel pressured or rushed. GO HERE...trust me. They will have what you need, or will get it for you, have great quality items, good sales, and will give you a fair price. HIGHLY RECOMMEND!!!!
Dilshad Tolliver
Dilshad Tolliver
20:57 14 Feb 19
After my husbands passing in 2015, I wanted to keep the wonderful memories of him and our love- my wedding ring. I walked into CDI diamond store and wanted to convert my ring into something I could wear everyday. They helped me design another ring with it along with some unique earrings. I was so happy and cried after I left there. This was an emotional decision and they made it so memorable. I would recommend this store to anyone that is looking for some jewelry for their loved ones. Thank you!
Michael Thomas
Michael Thomas
15:08 11 Apr 18
I dealt with Matt and I could not have had a better experience. I had little to no idea what I wanted/needed when buying an engagement ring and he walked me through the entire process. He was there to take my calls, answer emails in a timely manner and understood that this is a big purchase and took the time to find the right diamond. Matt never once tried to push me into something I didn't want just to close the sale early or buy something I didn't need. He is a true professional and I had a great experience dealing with him. On top of all of the great customer service, the diamond is beautiful and price was unbeatable. I highly recommend CDI.
Cameron Sheehan
Cameron Sheehan
13:47 11 Apr 18
To start, I am a medical student on a budget who was looking for the perfect engagement ring. I went to roughly 6 diamond stores before coming to CDI. Before this store, I felt like I wasn't being taken seriously because of my budget and no one really made time to help me. After getting drowned in thousands of rings with Halos, I finally stumbled upon CDI who gave me the freedom to completely customize the ring you see below. Matt ordered a few diamonds with my specifications/price range and gave me the opportunity to pick everything for myself. I would highly recommend this place to anyone and already have friends who will be visiting in the upcoming weeks. Thanks for everything Matt and team.
Gabrielle Gaglione
Gabrielle Gaglione
16:14 05 Apr 18
My fiancé got my engagement ring here and it’s absolutely beautiful. I wanted something a little different and what he received from them was just perfect. I get compliments all the time on my ring . My main request was it to be rose gold and sparkly and it definitely fits that bill. The customer service is great and they were very willing to resize my ring when I wanted it a little tighter. We will both be getting our wedding bands here and I can’t wait to see how they turn out !
amanda despo
amanda despo
13:52 30 Mar 18
When my fiance put the engagement ring on my hand, I cried. We were promising a life together full of love and adventure. Every moment was perfect especially the ring! I could not have picked out a better setting than my fiance did. I absolutely love my ring and I am still blown away by its beauty. We cannot wait to come back to CDI Diamonds & Jewelry to pick out our wedding bands! Thank you all so much for guiding my fiance through the process and helping him pick out the perfect ring!
Pulcritudiness Princess
Pulcritudiness Princess
23:13 26 Mar 18
My fiancé purchased my engagement ring and wedding band from CDI diamonds & jewelry, I can't fathom any jewelry store doing a better job. Believe me I've tried. They were not only consistent with getting back to me on my concerns in a timely manner, they made sure that I received the ring of my dreams, the exact way I dreamt it. In other words, "dreams come true at CDI DIAMONDS & JEWELRY." I could go on and on about their professionalism, promptness, humanly kindness, consideration and amazing prices. I won't. Here's the beaut in person. Go see for yourself!
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