This 6.7 carat Mexican fire opal is a rare gem in every sense of the word—not simply because of its origin or weight, but because of its unmistakable presence. Unlike the typical translucent “jelly” fire opals often found on the market, this high-grade piece delivers something deeper, more primal—a true embodiment of fire suspended in stone.

Sourced from the volcanic highlands of Querétaro, Mexico, this opal was born in the aftermath of ancient lava flows. Over thousands of years, silica-rich waters seeped into gas pockets and fractures in rhyolite rock, forming opal nodules under exacting geological conditions. It’s a land of fire and stone—where volcanoes once roared and left behind pockets of color that now dazzle in quiet light.

This cabochon is a product of that elemental crucible: a compact, vibrant stone that pulses with internal flame. As you turn it, you’ll see flashes of electric green and vivid blue, rare hues in Mexican fire opals that command global attention. These aren’t just colors—they’re living glints of volcanic soul, the mineral memory of the Earth’s inner heat.

Unlike commercial-grade jelly opals, this stone has depth, structure, and fireplay—the three pillars of exceptional Mexican opal. Its polish reveals complex inner landscapes: layers of shifting tone, suspended light, and the ever-elusive “true fire” collectors dream of. It’s not just beautiful. It’s geological performance art.

The journey from the mines of Querétaro to your hands is no small feat. Mexican fire opals are still mined largely by hand, in rugged terrain, by skilled artisans who understand the delicate nature of each nodule. Only a small percentage ever reveal color. Fewer still are cut and polished to this level. And only a precious few, like this one, emerge with gem-grade fire and that elusive blue-green flash.

This 6.7 carat stone is perfect for a one-of-a-kind piece of high-end jewelry or as a standalone collector’s specimen. A bold reminder that fire never truly disappears—it transforms.