Beads range from about 6mm to 7mm in diameter with about 32 beads per foot of chain. This specially curated, high-grade option features exquisite Tourmalinated Quartz ranging from white to black in tone and filled with the streaks of black Tourmaline that give the stone its name. The pairing with our signature silver plated chain makes for a lighter and higher-contrast appearance worthy of luxurious statement Jewelry Designs. Fans of our gemstone chain should jump on this exclusive offering perfect for necklaces, earrings and much more.