Amazon pulled a $4 ‘sterling silver’ ring that was 92% cancer-causing cadmium. A jewelry expert warns it’s back

A ring matching one that tested at more than 9,000 times the U.K.’s legal cadmium limit has resurfaced on Amazon under a new seller. A similar “sterling silver” design sells in the U.S. for $4.99, about what the silver alone in a genuine ring would be worth.