I did it during my trip in 2007, and it was sooo fun!! There is a giant tank so you can see all the oysters. It kind of turns into a show. Pick out a really ugly, hairy, older-looking one. That will ensure an advanced, big, and pretty pearl. (I have even heard of people getting two pearls on the DIS and making earrings out of them!!) When I picked my oyster, the lady was really theatrical about it and was like, "Ohhh! That's a good one! I can feeelll it!!" My DMom and I were like, "Okay lady!" But DM and I were a singer and a dancer with both acting experience respectively, so we love to ham it up! We just totally went with it and pretended like we were part of the show. "This is a good one!" "It will be the biggest pearl!" "No, two pearls!" The lady loved it. She cracked it open, and I got a really pretty white pearl that was probably like 1-1.5 carats. Then she buffs it and puts it in a little bowl of sand to show to all the viewers around the tank. And then this woman proceeds to describe the pearl to the people as, "SHINY! WHITE! SHINY! WHITE!" She had this maniacal expression on her face that I will never forget. My DM on I stopped goofing off and just stared dumb-founded. Then she turns to me and goes, "What do you want?? Ring? Necklace? Ring? Necklace?" This gal is a hard sell!! I did want to turn the pearl into jewelry, so I went around to the side of the tank where they have the settings. I picked out one with two small princess CZs on either side, and then they set it for me. I believe it only cost it about $40 total with tax. It turned out really pretty! I absolutely love the ring. Unfortunately though whenever I wear it, my family goes, "SHINY! WHITE! SHINY! WHITE!"