Fire agate rings bring volcanic color to your jewelry collection. This chalcedony variety forms when hot water deposits iron oxide layers within the stone, creating that signature iridescent flash. Our collection includes 36,638 fire agate rings set in .925 sterling silver, priced from $6 to $6,302. Each stone displays its own pattern of red, orange, gold, and green color play. We source natural fire agate from Mexico and the American Southwest, where volcanic conditions produced these layered gems millions of years ago.
| Estimated value: | $3,182.82 |
|---|---|
| Weight: | 20.20g |
| 8 -adjustable | |
| L - 1 3/4, W - 1, T - 1/2 inch | |
| Item Code: | 10-sie-25-35 |
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Most fire agate forms in Mexico and the southwestern United States, particularly Arizona. The stone develops in volcanic rock where silica-rich water deposits thin layers of iron oxide over time.
Fire agate measures 6.5 to 7 on the Mohs scale. This hardness level handles regular wear well, though you should remove rings during heavy manual work.
The layered internal structure creates different color patterns in each stone. The number and thickness of iron oxide layers determine which colors appear and how they shift in light.