Tungsten:
- Extremely scratch resistant
- Will not bend
- Permanently polished
- Dark gray color
- Commonly used in machining tools
- Can be removed with vice grips
Cobalt:
- Hypoallergenic and Biocompatible
- Heavier than titanium, lighter than Tungsten
- White, platinum-like color
- Scratch resistant
- Shatterproof
- Commonly used in the medical field
- Can be removed with a standard ring cutter
Titanium:
- Lightweight
- Aircraft grade
- Shatterproof
- Economical
- Dark gray color
- Hypoallergenic
- Commonly used in aerospace and sporting goods
- Can be removed with a standard ring cutter
Vitalium:
- Scratch-resistant
- WIll not bend
- Platinum-like white color
- Hypoallergenic
- Can be removed with vice grips
Zirconium
- When oxidized, black surface is hard as saphire
- Scratch-resistant
- Hypoallergenic
- Great for two-toned designs
- Unlike black tungsten, the black is permanent
- Commonly used for military purposes
- Can be removed with a standard ring cutter
Damascus Steel:
- Two grades of stainless steel fused together
- Heat and acid etched for unique design
- Dark gray color with lighter contrast
- Commonly used to make swords and knives
- Can be removed with a standard ring cutter