With the silver being mined in Laos, we want to keep up with the purity of our roots and have that reflect into our pieces as much as we can. To keep it pure, we use less metals when mixing our silver versus your standard 92.5 percent sterling silver pieces that is usually mixed with 7.5 percent copper. Blanc de Noir brings to you pieces that transcends the common sterling silver pieces, in which it measures up to 95-99.9 percent in pure silver versus the standard 92.5 percent sterling silver. Therefore, bringing you fine silver pieces that measures up to the quality and pureness you deserve.