... , Grade AA stone, Grade A stone, Grade B stone, Grade C stone, etc.4. Shape: round, tear drop, recetange, triangle, oval ... , OEM is acceptable8. Easy to fix on : T-shirt , Dresses , Veils , Headpieces , Cellphone ,Computer , Gloves , Shoes , Purse , Household / Decor items . . . . . . Best price ...