Allegheny Diamond Mine

Allegheny Diamond Mine has selected a truly unique inventory of stylish jewelry from classic to contemporary. We offer an extensive selection of high-quality certified loose diamonds and jewelry at outstanding prices. In addition to diamonds, we also have a wide variety of 14K white and yellow gold jewelry as well as high fashion sterling silver designs. Allegheny Diamond Mine’s well-educated staff provides a personal touch to every buying experience.

Established in 2002.
Allegheny Diamond Mine was originally located in the heart of Cranberry Township, PA just off of Route 228 in the Target/Kohl’s plaza. In the spring of 2013, the business moved just down the street to its current location at 20232 Route 19 Suite 2.

Mark H.
Business Owner
Mark has been in the jewelry business for the past thirty years. He started in the famous Clark Building in downtown Pittsburgh. After he studied to be a certified gemologist at the University of Pittsburgh, he decided to start the Allegheny Diamond Mine in the fast-growing suburbs of Cranberry Township with the help of his brother Luke.