A report by World Gold Council (WGC), 'Developing Indian Hallmarking - A roadmap for future growth', states "Gold jewellery is still affected by the under-caratage of anywhere from 10 per cent to 15 per cent, on average, with widespread differences in purity." The report gives an in-depth analysis of the current hallmarking system in India as well as makes possible recommendations to improve the state of affairs. The hallmarking of gold, which is voluntary in nature at present, is a purity certification of the precious metal.