Forest Lady
The Forest Lady by LeRoi glitters in your navel with three green zirconia. The rhinestones are held by a titanium socket, which means that the plug is not only nickel-free but also very light.
The upper and lower zirconia are each 4mm in size, the middle one has a diameter of 6mm.
The third extra rhinestone at the lower end of the largest zirconia gives this navel piercing a length that is not suitable for the short navel.
 
Nickel free 
This piercing jewelry is made of implantable titanium and is therefore nickel-free and suitable for allergy sufferers.