Titanium threaded ends with cabochon gems. Cabochon gems are polished smooth rather than being faceted, which is a common treatment for opals. These ends are threaded to fit 14g and 12g posts/bars. These ends are great for floating navel and surface placements.
Gem is 4mm across.
Remember, you'll need a compatible post/barbell for a complete piece of jewelry. This end is *not* compatible with threadless jewelry.