Besides, she added, “What can you do with all of this?”

Mr. Stocks has spent years trying to answer that question. Nearly every week, he said, his phone rings with offers from people who have ideas for selling his materials for profit. He said he had rejected hundreds. “Once you preserve these artifacts, you’re responsible for them,” he said. “I felt the weight of that responsibility. It’s a very important thing to do.”

The Statue of Liberty-Ellis Island Foundation received an initial payment from Gold Leaf for use of the copper, but it would not name the amount, citing a confidential agreement with Mr. Stocks. Alex and Ani has pledged to donate a minimum of $100,000 to the foundation in the next year.

Foundation officials announced this month that they were raising money to build a new $70 million museum on the island. The entrance to the new museum is to feature a sculpture made from the statue’s old iron bars, which would be provided by Mr. Stocks.

John Piltzecker, the park service’s superintendent of the Statue of Liberty National Monument and of Ellis Island, said park officials were always concerned about the use of the statue’s materials for commercial purposes, but he believed the new jewelry line “was executed with a sensitivity and respect for the subject matter that is apparent in its design.” He added, “We hope that it will inspire and spark countless conversations about what the Statue of Liberty means.”

Mr. Stocks said he envisions preserving many of his remaining items for a museum display. He wants to use other items to create what he calls “one-of-a-kind art.”

At his request, the Gibson company created a so-called Spirit of America guitar, using wood removed from Ellis Island and copper from the old copper support saddles inside the statue. He commissioned another company, Orange County Choppers, to build a “Liberty Bike,” a copper-plated motorcycle, which is now on display at Liberty Island.

Mr. Stocks learned of Carolyn Rafaelian, the owner of Alex and Ani, from a friend in 2013. Ms. Rafaelian’s paternal grandfather, Melkon Rafaelian, had arrived at Ellis Island from Armenia in 1913, settled in Providence, R.I., and started a family. His son, Ms. Rafaelian’s father, Ralph, started a company, Cinerama Jewelry, which became known for its American flag pins.