Once that tradition ceases, we're all losers. This imported jewelry coming in is quality stuff, it's not junk. Many Navajo-made items now carry a horned moon trademark, which is registered with the U.S. Patent Office. Like other trademarks, it can be licensed to spread the cost. Indians are as much a part of the solution as they are the problem.
Most experts agree there is already enough law.
The Omnibus Trade and Competitiveness Act of 1988 requires that Indian-style imports be indelibly marked with the country of origin. Most of those are handled administratively. Civil suits can be filed on behalf of Tribes, Tribal members, or Indian arts and crafts organizations. Criminal cases require stronger proof, including knowledge on the part of the vendor that the item sold as Indian-made was fake. Genuine, Imitation Seminole Seminole arts and crafts are also copied, and occasionally misrepresented as Native-made.