Small Niobium Crystal Box Ring It has been coloured using

It has been coloured using the electrolytic process 'anodising'

These sterling silver and niobium studs add an eye-catching pop of iridescent blue and purple to your outfit

The silver frame was custom-made for the niobium "crystal"

Small sterling silver studs with a hand hammered sparkling crystal-inspired texture

Small Niobium Crystal Box Ring It has been coloured usingThis sterling silver and niobium box features a stunning combination of iridescent blue and purple, inspired by the natural beauty of garnet shapes. Crafted with the ancient technique of chasing and repouss using hand made steel punches, the niobium metal has been coloured through the process of electrolytic 'anodising'. It is also hallmarked at the Sheffield Assay Office and comes with free shipping in the UK through Royal Mail Special Delivery.