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. 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 over 575, 5-star reviews on Google.
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