Opps....I have exported Conch shells from TCI and Cayman Islands. I am lucky I did this before the law changed. Read this report from the Sands Resort:
http://www.thesandstc.com/blog/laws-regarding-the-exportation-of-conch-shells-from-the-turks-caicos-islands/
Here is a shot of a harvest back in 2011 off of Water Cay, TCI. On a previous trip I saw a "wall of conch" that must have held a 1,000 shells!