Tarnished immediately while wearing but the chain was fine.
"I have A LOT of James Avery. This was the one piece I bought for my husband for our anniversary and I got him a curb chain. It turned black after a few days. I cleaned it off and it turned black again all while he was wearing it. The chain was perfectly fine which leads me to believe it was bad materials in the cross itself. I took it to a store and exchanged it. This makes me have worry about future purchases. I’m just glad they exchanged it for me"