As sales decline, pieces get discontinued. Its just what happens. For nine years supplies of the wonderful 50mm Star Prism and 50mm Moon Prism have slowly been declining. Last month we saw the end of our 50mm Clear Star, 50mm Aurora Borealis Star, and our 50mm Aurora Borealis Moon. It was a sad day indeed as many people were deprived the opportunity to add those pieces to their collection. We still have a limited number of the 50mm Clear Moon remaining, but Swarovski has already sold out of their stock. So, this is the end of an era in celestial crystal pieces. If you have ever thought of adding a large moon to your crystal collection, do not delay, these beautiful pieces wont last long.