Children's and Teens' Earrings: Surgical Steel, Gold IP 6mm Pink, White and Purple CZ Studs x 3 Gift Pack

Pretty, pink, white and purple AAA cz studs in hypoallergenic surgical steel, with push on backs. This gift pack would be suitable for older girls, to adult. Each cz is 6mm.  What is gold IP?   "To begin with, a layer of titanium nitride is added to the base surface of stainless steel. Additionally a final plating metal is added to the surface; the thickness of this layer is no more than 0.3 urn. ... Given its durability and chemical stability, ion plating is rightly called “permanent” coating.