About Us



J.P. Knight Company was founded in Cincinnati, Ohio during the early 1900’s by John Paul Knight. Since our inception J.P. Knight’s tradition has been to produce the finest quality jewelry with exceptional craftsmanship, using only optimum materials. Family owned and operated, J.P. Knight is also recognized for providing unsurpassed customer service.

In its beginning years, J.P. Knight made its mark through diamond cutting and polishing of high quality stones. As we continued to grow, so did our selection of products and services.  Manufacuring of finished jewelry like, engagement rings, fancy rings, necklaces, earrings and bracelets was added to complement the offerings of fine loose diamonds and gemstones. 

Time to instill your confidence in a highly regarded company such as J.P. Knight that has been in business since 1912. Using our years of experience and integrity will ensure you make an informed decision about your next jewelry purchase.  An investment that will provide beauty, value, and satisfaction for years to come.

J.P. Knight has been selling fine jewelry and diamonds to retail jewelry stores from our beginning. We invite you to visit with one of the many qualified jewelers with which we have had years of experience.  Know that you will be offered the finest quality, American made jewelry at an exceptional value. 


J.P. Knight Diamonds LLC
Cincinnati, Ohio 45255

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