Welcome to Universal Diamonds

For over 40 years, Universal Diamond has solidified its legacy as Atlanta’s most trusted engagement ring and diamond jewelry store. Located in Atlanta’s prestigious Buckhead neighborhood, we are Atlanta’s most respected buyer and seller of engagement rings, diamonds, diamond jewelry, loose diamonds, and estate jewelry.


Amos Agami served as a tank commander in the Israeli Defense Force before immigrating to the United States in 1970. He was introduced to the world of gems and diamonds after graduating with a degree in Business Administration from Georgia State University in 1974. His career started in retail, where he learned the ins and outs of the industry. In addition to expanding his knowledge of the trade, his work in retail helped him develop his incredible sales skills, which allowed him to branch off on his own to start Universal Diamonds in 1980. With a discerning eye for quality stones and a keen ability to see everything through the eyes of the client, Amos goes above and beyond to provide pieces of excellence as well as a highly personalized customer experience – strengths that he passed down to his two sons who have since continued to make Universal Diamonds a successful family business. A true visionary and diamond expert, Amos has used his passion for the industry to build the largest whole diamond business and one of the most trusted fine jewelry buying establishments in the Southeast.


Being immersed in the world of diamonds from and early age fostered Ronnie’s early interest in and appreciation for precious stones, so it’s no surprise that he would follow his father’s footsteps into the gem and jewelry industry. After graduating from the University of Michigan, he went on to formally prove his professional status by earning a graduate degree in diamonds from the globally-recognized Gemological Institute of America in New York. To further expand his knowledge of various facets of the industry, he subsequently took internships with some of the finest retailer and manufacturers in the business, including Tiffany & Co. and Leo Schachter. He eventually found his way back home to Atlanta, where he officially made Universal Diamond Corp. a family business by becoming owner in the fall of 2001. Like the diamonds that he sells, Ronnie thinks of the experience his clients have with Universal Diamonds as forever – understanding that a piece of jewelry is more than a stone, but a concrete part of a special memory. As personable as he is knowledgeable, Ronnie’s passion lies in building relationships with his clients – spending the time to grasp who they are so that he can match them with the perfect, most quality piece while providing them with a one-of-a-kind, personalized experience. When he is not working with clients to find the diamond they will always cherish, Ronnie enjoys spending time with his wife and three children, acting as a member of Young Presidents’ Organization (YPO), and giving back to the Atlanta community.


Like his brother, Jonathan Agami was also groomed to excel in the gem and jewelry business by watching his father found and grow Universal Diamonds. After earning a BA from the University of Michigan and studying at the nationally-esteemed Gemological Institute of America in New York, Jonathan returned to Atlanta to offer his expertise to the family business as Vice President. While he enjoys every aspect of the industry, Jonathan found his niche in sourcing and buying after traveling to Israel with his father. With client satisfaction always top-of-mind, Jonathan maintains a goal to elevate the standard of every stone sourced and piece of jewelry created, and takes pride in finding and building pieces that transcend time. Whether designing classic look or industry trend, Jonathan ensures that every piece of jewelry begins with a high-quality diamond and ends with a unique product that the client will always treasure.

Sell Your Jewelry

With over 40 years of experience in the diamond industry, we are uniquely qualified to purchase diamonds. We understand that your decision to sell is always a personal one, and we honor that every step of the way. At Universal Diamonds, we believe in relationships and strive to provide our clients, whether they are buying or selling, with a one-of-a-kind experience. Each piece is special, and each customer is unique.

We look forward to providing you with an honest and straightforward evaluation of your piece.

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