"Ah, well," he said, nodding sagely, "perhaps if you do not know how to dive, the markets will have to do. Magic pearls bond to the harvester. You would not be able to keep it if you did not harvest it yourself. It would disappear into so much sand within a day.
"Now, if it's designing jewellery you're interested in, then you'll want to go to Germany, where the jewels come straight out of dwarven mines to be cut and set by master craftsmen to your specifications in any metal you like. The Munich nightlife has much to recommend it as well, especially if you've already had your jewels made-up and are in need of a place to show them off properly.
"After all, a jewel locked in a case is no more exciting than a lovely woman locked up in a house with nothing to do all day," he added with a smile.