This brand 100% doesn't tarnish, keeps its shine and doesn't cause any skin irritation. I have had my necklaces and bracelets for 4 years now and they are salt water hardy, hot pool hardy and cosmetics hardy. I have struggled with other women's brands claiming how great they are but they all eventually tarnish and get ugly. Vacier gear is OUTSTANDING. 100% AWESOME. I'm in NZ and will continue to buy these necklaces to replace the other brand ones, I love this stuff it's amazing.