Koop Diamond Cutters Inc. is a well-regarded, family-owned jewelry business located in Cincinnati, Ohio. With over 30 years of experience, they specialize in custom jewelry design and provide exceptional service that makes customers feel valued. Many clients have praised the quality and affordability of their products, often returning for future purchases. The skilled team, led by Justin and his family, works closely with customers to create unique pieces, including engagement rings made from family heirlooms. The atmosphere is friendly and welcoming, making it a favorite for both locals and those looking for a trustworthy jeweler. Overall, Koop Diamond Cutters Inc. has built a reputation for outstanding craftsmanship and personalized service, ensuring that customers remain loyal for life.
The experience I had creating a ring with Justin and his team was second to none. They went above and beyond to make sure I was satisfied and everything was just how I wanted, at a fair price. This kind of customer service and attention to detail is very refreshing. I would not consider any other jeweler in the future.
November 2025
Friendly, fast, and attention to detail!!! The stone of my engagement ring, which was made by a different jeweler, was loose in its setting- and they were able to tighten the prongs in under 20 minutes. I felt like family as soon as i walked in, Koop Diamond Cutters was amazing, and I will be going back for all my jewelry... read full comment
April 2025
Koop did a fantastic job with my engagement ring and we have decided to use them for wedding bands as well. Great service and beautiful work! They clearly love what they do!