That would be a little easier to do with the insane mark up on jewelry. But what happened to the people when you couldnt afford to pay them?
Now your sounding foolish. Thousands of Jewelry stores just in the greater Miami area each competing for a piece of the market. Most costumers visit at least 3 stores before they buy, if your prices aren't competitive you're out of business in less than a year. Markup? yes of course but insane? not even close.