This crystal prism is made by the world-famous Austrian crystal manufacturer Swarovski.

Swarovski crystals are the finest crystals available. 
Made of the purest raw materials. 
Great for chandelier parts, jewelry making, or other crafts. 
Also, could be strung and hung on a Christmas Tree.

Specs -
Art. #8641
Size - 20x12mm
30% PbO
Optically Pure
1 Hole