View our Man-Made Diamonds at the MiaDonna Showroom

MiaDonna Showroom - Portland, Oregon

The MiaDonna & Company showroom is open in America's Greenest City, Portland, Oregon. Located in the exclusive Lincoln Center across from the Washington Square Mall, MiaDonna customers are invited to schedule a personal appointment to view and shop the world's most beautiful collection of eco-friendly jewelry and conflict-free diamonds. Enjoy our no-pressure environment, and learn how your purchase will help MiaDonna and The Greener Diamond Foundation give back to communities impacted by the unethical conflict-diamond trade.

As Portland's first and only conflict-free jewelry retailer, we offer the largest and most beautiful collection of Lab-Created Diamonds (The Elite Collection), Lab-Created Gemstones as well as the world famous Diamond Hybrid® simulant. And while we do keep a selection of finished rings and accessories in our showroom for purchase, we do not carry our entire online collection in-store.

Appointment Hours

Mon / Tue / Wed / Fri: Hourly, 9am to 2pm.
Thursday: Hourly, 9am to 5pm.
Closed on weekends.

All appointments are an hour long and should be scheduled in advance.


We want you to be our guest!

Schedule your personalized visit with a MiaDonna Personal Shopper in our Portland Oregon showroom.