Somnath Bhattacharyya, Wits University (IMAGE) University of the Witwatersrand Caption Professor Somnath Bhattacharyya next to the vapour deposition chamber that is used to produce diamonds in the lab. Credit Wits University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.