Black Zirconium ring with off centre black Ertalyte inlay.

Black Ertalyte and Teflon are used in rings for their durability, comfort, and sleek aesthetics. Ertalyte, a strong, wear-resistant plastic, adds lightweight durability and a modern black finish, making it ideal for daily wear. Teflon, known for its smooth, non-stick surface, enhances comfort by reducing friction and is resistant to chemicals and extreme temperatures, contributing to the ring's long-lasting performance. Together, these materials offer a blend of strength, comfort, and style.

In terms of durability, Zirconium is the only metal that can be treated to turn black. Contrary to popular belief, there is no such thing as black Titanium or Tungsten. What often appears as black Titanium or Tungsten rings online are actually standard silver rings that have been painted black, but this coating wears off quickly.

Zirconium begins as a silver metal and is treated to achieve its black finish. If the ring is damaged or worn down, it may reveal the natural silver color underneath. However, Zirconium is unique in that it can be polished and re-treated to regain its black appearance.

Zirconium is more expensive than Titanium or Tungsten, particularly the high-quality, treatable Zirconium used in these rings.