Welcome to Opal Mountain Gems!

We are your source for fine Montana Sapphires, Idaho Garnets and of course, Idaho Opals! We also carry Montana Moss agate and other stones found around the area - like beautifully faceted quartz, chrysocolla and jaspers.  We do our best to bring you local gems and minerals mined by our family.  We carry a large selection Our gemstone earrings, rings, pendants and bracelets are available set in sterling silver, Argentium silver, 14K gold and palladium.  

Custom and ready-made settings are available for your stone or ours! We love to help you create a beautiful piece of jewelry full of memories.  If you don't already have your own gem, we offer sapphire gravel rich in Missouri River Sapphires!  For those of you that like to stay clean, we carry a nice selection of loose stones as well; garnet, sapphire, opal and many other colored stones. If we don’t have what you’re looking for, we’ll do our best to get it!

If you’re in the area, please come in and check out all the treasures in our store. We carry Montana and Oregon thunder-eggs as well as Mexican “coconut” geodes – one free cut while you watch-always a fun surprise inside! We also have a selection of local crystals including clear, smoky and amethyst; fun metal sculptures, watercolors, stone knobs , wood workings, knives and more.