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Opal Mountain Gems - Logo
406-859-6725-

The Philipsburg Valley


Welcome to Opal Mountain Gems!

OMG-MT is your source for fine Montana Sapphires including the premier Yogo sapphire, Idaho Garnets & Idaho Opals!

We do our best to bring you local gems and minerals mined by our family. Here you'll find a large variety of gem gravels for at-home mining including Yogo ore, virgin El Dorado sapphire gravel, African gemstone gravel, Ruby Reservoir garnet gravel and more. We carry local products like chrysocolla, faceted quartz and jaspers. We create many styles of jewelry that incorporate our local gems including earrings, rings, pendants and bracelets. Styles are available in sterling silver, Argentium silver, 14K gold and palladium, we're sure you'll find something that catches your eye and meets your budget.

If you're looking for something special, we offer custom and ready-made settings for your stone or ours! We can help you create a setting for that Montana sapphire (or any stone) full of memories with a lifetime of enjoyment. If you don't already have your own gem, find one in our sapphire gravel rich with Missouri River Sapphires! For those that prefer to stay clean, we carry a nice selection of loose stones as well; Yogo sapphire, Idaho garnet, Montana sapphire, Idaho opal and many other colored stones. If we don't have what you are looking for, we promise to do our best to get it!

Our retail store also offers thunder-eggs from Montana and Oregon as well as Mexican coconut geodes (cut while you watch), always a fun surprise! We carry Yogo ore gift bags, local crystals including clear, smoky and amethyst quartz; whimsical metal wine racks, wall art, stone knobs, wood workings, knives and more.