Devil Aquamarine 4mm Faceted Round A Grade Bead - 15-16 Inch

"Devil Aquamarine" (or "Devil Blue Aquamarine") is a market term for natural aquamarine characterized by deep blue, dark tones, and inclusions of black tourmaline or other dark mineral beryl. Known for its high-contrast, moody aesthetic, it often features a metallic sheen or silvery chatoyancy caused by internal structural healing, highly prized for jewelry, particularly in beaded bracelets.