Gold opal belly ring with a faux black opal. Opal belly ring, glittery black opal belly ring. The faux black opal is teardrop shaped and prong set and glows in the light with radiant iridescence. The opal belly ring is 14 gauge and 3/8" long (10mm), and is made of IP gold plated surgical steel. Choose your color wire wrapping for above the opal stone, shown with dark green.