Arizona Amethyst | Four Peaks Mine, USA | 4.5mm or 5mm Round | Sold Per Stone
Arizona Amethyst | Four Peaks Mine, USA | 4.5mm or 5mm Round | Sold Per Stone
These 4.5mm or 5mm round amethysts originate from the Four Peaks Mine in Maricopa County, Arizona — one of the most celebrated and geologically unique amethyst deposits in the world, and the only commercially significant amethyst source in the United States. Four Peaks amethyst is distinguished by a distinctive reddish-purple to deep violet hue with a characteristic reddish flash, a color profile so recognizable among gemologists and collectors that it is considered a signature of the deposit. Three stones are available to choose from, ranging in shade from soft lavender to rich, deeply saturated purple — each weighing 0.50 carats at a calibrated 5.5mm round, making all three options setting-compatible across standard findings and bezels.
Amethyst is the most prized variety of quartz, historically associated with royalty and fine jewelry across cultures, but Four Peaks material occupies a category entirely its own. The mine sits at an elevation of nearly 7,000 feet in the Mazatzal Mountains and has been worked since the late 1800s, with production remaining extremely limited due to the remote and rugged terrain — material is still hand-carried out of the mine today. This combination of domestic origin, limited production, and distinctive color character makes Four Peaks amethyst significantly rarer and more collectible than the Brazilian and Uruguayan material that dominates the commercial market. For a designer seeking a stone with a genuine American provenance story, it is unmatched.
DETAILS
Origin: Four Peaks Mine, Maricopa County, Arizona, USA
Species: Quartz
Variety: Amethyst
Cut: Faceted Round
Size: 4.5mm or 5mm
Weight: 0.50 ct per stone
Sold: Individually (choice of three stones, varying shades of purple)
Treatment: None
Hardness: 7 (Mohs)
Refractive Index: 1.544 – 1.553
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