THESE BEAUTIFUL CRYSTALS ARE OF THE HIGHEST QUALITY MACHINE CUT AND POLISHED BEADS IN THE WORLD. tHE COMPANY CREATES GLASS WITH A SPECIAL COMPOUND THAT CANNOT BE DUPLICATED. THIS COMPOUND CREATES INCREDIBLE BRILLIANCE AND THEY WILL OUT-SPARKLE CRYSTALS OF A LESSER QUALITY. THEY HAVE DIFFERENT FINISHES AND LUSTERS AND COME IN A LARGE VARIETY OF COLORS AND SIZES. THEY MAKE GREAT ACCENTS WHEN USED WITH GEMSTONES OR PEARLS. VISIT MY WEBSITE AT DENIMDAWGJEWELRY@YAHOO.COM TO SEE HOW WE USE THESE BEAUTIFUL STONES.