Elevate your designs with these stunning 18x25mm Aurora Borealis oval acrylic gems. The iridescent finish catches light beautifully, creating a mesmerizing rainbow effect that shifts with every angle. Pre-glued backing makes application effortless—simply press onto your project for instant sparkle. Perfect for jewelry, embellishments, resin work, and mixed-media crafts. Each gem delivers premium color-shifting brilliance that transforms ordinary pieces into show-stopping creations.