316l Surgical Steel Navel Belly Ring with Various Pendants. Highest Quality Surgical Steel Made in Korea, known for superior craftsmanship and material. Most of the belly rings sold on Amazon are made in China with cheaper materials and low quality finishing. 315L Surgical Stainless Steel. Grade AAAAA Cubic Zirconias. Comes in premium gift box. Comes in Free Gift Box. Many sizes and styles available. Click PremiumCZ above.