Israeli mining billionaire Beny Steinmetz will begin his battle this week to overturn his bribery conviction and repair a reputation tarnished by a landmark Swiss ruling that focused on an industry dogged by allegations of graft.

Steinmetz, who built his fortune as a diamond trader, will return to Geneva for the appeal which starts Monday. Over the course of the eight-day trial, his legal team will highlight what they say are fundamental mistakes Swiss judges made in misinterpreting how he won the rights to the Simandou iron-ore mine in Guinea.