Oysters with Pearl-Real Pearl in a Real shell These wish pearls inside the shells are great for selling, advertising, teachers and students, parties, promotions, gifts, corporate events, fundraisers and school projects. These beautiful pearls, (also called Wish pearls or Love pearls) are unique, educational and lots of fun to open! They are cultivated from freshwater mollusks. Each pearl shell comes packaged inside it's own see through can! You open the can, then open the shell... and inside is a genuine pearl! Wish Pearl is a cultured pearl that takes a minimum of 3 to 5 years to develop within their shells. As the Wish Pearl reaches its final maturity of 5 to 8 millimeters in diameter, the original irritant naturally dissipates, leaving on the pearl itself. Only one of several hundred oysters develops a quality of size, roundness and luster that qualifies it to be a Wish Pearl. No two are alike. These are the 5 pearl colors that come out of the shells!