These Aurora Borealis Crystal dangle earrings make great accessories because of their versatility. The clear crystal and sterling silver make it an easy pairing with your favorite outfit for work or school. They can also be dressed up or dressed down without too much effort. Wear them anywhere and everywhere; you don?t have to worry about not matching with your outfit because it always will. These earrings have 925 sterling silver leverbacks. Aurora Borealis crystals are often used in many pieces because of their highly sought after ?borealis effect? which mimic the colors of the northern lights. They look exceptionally mesmerizing in bright light and outdoor settings. They also look stunning at night when the reflection is reduced, leaving you with a subtle glow which will accentuate your evening outfit.