Sterling Silver Bauxite Medium Oval Ring. R012OX. This stylish ring features an oval piece of highly polished hand carved white Bauxite which is framed within a deep sterling silver setting. The ring has been designed and made within our workshops in Derbyshire, Ashbourne and matching items are available within the collection. Bauxite is a pure white material which has a highly vitreous lustre when polished, predominantly an Aluminium based material. Dimensions: Bauxite 21 x 19mm.