Natalie Frigo uses ethically sourced stones from mines that provide livable wages and safe working conditions for their workers, as well as recycled metals in her jewelry. The end result are beautiful pieces that leave less of an impact on the planet. Bricks and Silver necklace, made from ethically sourced black tourmaline beads and recycled silver on ultra-suede strap; $180. Available at ByNatalieFrigo.com.