Ametrine Rings in Sterling Silver  

Natural Bolivian Ametrine Set in .925 Silver Settings

The color division in ametrine occurs when iron impurities oxidize at different rates within a single crystal during formation. Temperature variations in the geological environment create distinct zones—cooler areas produce the violet amethyst sections while warmer zones yield the yellow-orange citrine portions. Each stone displays this split differently, with some showing sharp boundaries and others blending more gradually. Bolivian ametrine from the Anahí Mine has supplied jewelers since the 1600s, though commercial mining began in earnest during the 1980s. The mine sits within a remote region of the Pantanal wetlands, and its output remains the benchmark for quality ametrine worldwide. Stones from this source tend to show strong saturation in both color zones. Our sterling silver settings protect the stone while letting light enter from multiple angles, which matters for bicolor gems where you want both hues visible. SilverRush Style has offered natural gemstone jewelry since 2005, and every ametrine we sell is genuine, not synthetic or lab-created. Browse the collection below to find a ring that fits your style and size.