These fancy stones have a 10mm hole with a rounded edge to reduce wear on your stringing material. These crystal fancy stones are perfect for a dramatic splash of color in a necklace design or bracelet project. The Swarovski brand of Austrian crystal is famed for its precision shape and brilliant color. Tried and true, the Crystal Volcano Swarovski Fancy Stones are perfectly faceted and reflect a calm sparkle. Adding these Swarovski Crystal Fancy Stones to your next jewelry project creates an unmistakable sign of authenticity and elegance.