Crystal AB Swarovski Stones

All rhinestones are Swarovski Austrian Flat Backs that are made of leaded crystal which have indvidually cut and polished facets with an iridescent/rainbow effect (Aurora Borealis AB). Rhinestones come in two sizes. 20ss and 30ss. The 20ss are packaged in one gross (144 stones) and 30ss are packaged in half gross (72 stones). AB is a short name for Aurora Borealis. Aurora Borealis (AB) is a coating that is put on top of the rhinestone, giving the rhinestone a more iridescent/rainbow effect.