Commodities Explained: Why gold prices fell below Rs 50,000 per 10 grams Updated : August 12, 2020 01:21 PM IST Investor risk-appetite improved after Russia on Wednesday officially launched a vaccine that could arguably be the world's first COVID-19 treatment system. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.