A family legacy, cut in color
Spencer Opal,direct from the source.
Rare solid Spencer Opals, hand forged jewelry, and American-mined gems from a family that has worked Spencer Opal for more than 50 years.
Curated from the shop
Find your stone.
Every piece is individually photographed and described so you can buy with confidence—even from hundreds of miles away.
Where Heirlooms are Born
Your Stone: Built into something worth showing off.
Bring us a stone you already own or choose one from Hot Rock Gems. We can create rings, pendants, earrings, and one-of-a-kind designs in .925 sterling silver, 14 and 18K gold, White Gold, and Platinum. Work one-on-one with our goldsmith to turn your ideas into a finished piece. Please attach a drawing or photos for references.
Get a setting quote ↗
A true Spencer story
Five decades in the open pit, behind the wheel, and across the counter.
The Sudweeks family has open-pit mined, cut, set, and sold opal for more than 50 years. Hot Rock Gems brings that experience into every selection: honest descriptions, personal help, and stones chosen by people who know the opal firsthand and prioritize quality above all else.
Speak with Chad ↗★★★★★“You can tell they genuinely care about the stones and the people who walk through the door.”Customer review · Spencer, Idaho
Provenance certification included with qualifying pieces over $500.
Request a personal video before buying a premium piece.
Premium shipments are fully insured, tracked, and require a signature upon delivery.
Call the store and talk with someone who knows the stones first hand.
Explore the collection
Add an image
First image
Add an image
Second image
Add an image
Third image
Add an image