BELLY BUTTON NAVEL JEWELRY. This beautiful aqua blue belly ring is so multifaceted, the sparkle never ends. The unique cut of the gemstone gives this navel ring a designer look. The oval shaped crystal is 1/2" (12.7mm) x 3/8" (9.5mm). The barbell is made from 316L Surgical Grade Stainless Steel. Barbell Size: 14 Gauge (1.6mm) Barbell Length: 7/16" (11mm) Brand: FreshTrends Age: Adult Condition: New