By stocking gems and jewels that are sustainably and ethically sourced, you are boosting your potential for sales, attracting millennial buyers, and doing right by the trade The federal government’s proposed regulations for the seafood industry, which would require the trade to trace its products from harvest or production to the point where they enter into U.S. commerce, make gemstone dealer Eric Braunwart nervous. If fishermen are admonished for underreporting catches and casting lines where they shouldn’t, the global jewelry trade, and its host of Pandora’s box issues—from environmental damage at mines to working conditions at jewelry factories—is bound to draw the attention of regulators. “It’s a lot harder to trace the origin of shrimp than it is to trace gemstones,” says Braunwart, president and CEO of Columbia Gem House Inc., a longtime seller of ethically acqu