Our Argentium Silver Faceted Gemstone Stud Earrings are a beautiful classic style featuring many types of facet cut gemstones in a variety of colors and sizes. Argentium Silver (or Argentium Sterling Silver) is 92.5% silver, 6.3% copper, and 1.2% germanium. It is slow to tarnish so will require less frequent polishing than sterling silver. Argentium Silver is nickel free and is very comfortable. These earrings come with Commercially Pure Grade 1 Titanium ear nut earring backs.