a luxurious colourfast, golden coloured PVD coating on a selection of G23 surgical titanium body jewellery. The PVD formula is proven biocompatible and permanent. Zirconium nitride has been tested by an independent biological testing laboratory and is certified biocompatible for external and internal medical devices that come into contact with bone, skin, tissue and blood. Zircon Gold is ultra safe, colourfast and scratch resistant.