Diamond houses want a government tab on rough synthetics trade

Amid the hunt for Nirav Modi and Mehul Choksi, diamond NSE 0.00 % houses in India have alerted the government about the urgency to track the trade of cheaper synthetic diamonds, which rogue jewellers may be freely mixing with real ones. As diamond houses try to step out of the shadow of a sensational scam that has rocked many high-street banks, they have urged the commerce ministry to assign a distinct code for ‘rough synthetic diamonds’ — so that the industry can trace the quantum of artific.