Rochester Hills Custom Engagement Ring Designer - International Diamond Importers (248) 652-6040 If you are in need of a top rated Rochester Hills custom engagement ring designer, please visit International Diamond Importers or call (248) 652-6040 for more information. Click here to see photos of some of our custom designed engagement rings or Follow Us on Facebook! The search for an engagement ring is one fraught with risks and frustrations. With the wide range of beautiful