Matt & Kellie are awesome!! Very easy going and helped me pick out the perfect ring. I would highly recommend CDI to anyone looking for quality jewelry and a great experience.
January 2024
Matt and Lisa took great care of me when I bought my wife’s Christmas gift. They spent the time showing me different option's and educating me on the different type of bracelets. I have purchased several items from CDI and with each purchase I’ve had the same exceptional service. Cheers to the CDI Team!
January 2024
My soon-to-be fianće’s engagement ring is the biggest purchase I’ve ever made in my life and the CDI team was tremendous in helping me navigate it. They love diamonds and they love teaching their customers about them. They also never miss a phone call.
Formerly of Youngstown, Ohio, Matt Carlozzi Jr. ushered into the jewelry business as CEO/Owner of a manufacturing and loose diamond wholesale company featuring his patented loose diamond design. With his roots firmly planted in the capital city, Mr. Carlozzi owns and operates CDI Diamonds & Jewelry (formally Bernie Helmick Diamonds & Gold) which has been serving the Columbus area for over 20 years. CDI has amassed an impressive 500, 5-star reviews on Google that continues to grow daily. CDI specializes in certified loose diamonds, diamond wedding bands, engagement rings, designer sterling silver collections, and lab grown diamonds. CDI also offers expert jewelry repair, custom design as well as
high-end watch repair.
