Beautiful Pieces Since 1981 Welcome to Donald Haack Diamonds where it is a well-established tradition to offer only the very best jewelry at sensible prices. We have built our business around a fully-equipped diamond grading laboratory. Every diamond we select is graded by our graduate gemologist who follows strict GIA (Gemological Institute of America) standards. Donald Haack Diamonds is honored to have received the Charlotte Ethics in Business Award and The American Business Ethics Award. When buying a diamond, don't you want to make sure you are working with a jeweler you can trust? We are not your typical jewelry retailer. Our tenet has always been to be personal buyers and advisors to our customers. Fine diamonds can offer a lifetime of pleasure. If they are purchased with care, they can also be an excellent investment. Donald Haack Diamonds is here to help. We work with diamonds all day, every day. We buy diamonds, sell diamonds, appraise and grade diamonds, and set loose diamonds into jewelry.