Clear Gem Internally Threaded Simple Belly RingProduct Details Clear Gem Internally Threaded Simple Belly Ring Have it all in one elegant package with this 14 gauge navel ring. It is made with a 3 8 inch 316L surgical grade stainless steel curved barbell. The top end is set with a 5mm clear gem. The bottom end is set with a matching 8mm clear gem and it is internally threaded for comfortable insertion and removal. If you want it all in one neat package, you want this classy, colorful belly