Price listed is for 1/2 ounce of mixed semi-precious stones. These appear to be made out of natural Blue Lace Agate. The shapes included are oval, round and pear. The sizes range from about 4mm to 20mm. They all have dome tops and flat backs. THE AMOUNT OF PIECES AND THE SHAPES INCLUDED WILL VARY. The sample half ounce measured had approximately 15 pieces.