India's Multi Commodity Exchange (MCX) has launched the country's first gold options contract in New Delhi to coincide with the gold-buying festival of Dhanteras.
Company said it expects production of between 50,000 and 55,000 ounces of gold from its new mine in south-western Mali to bring total metal production for 2017 to between 530,000 and 570,000 ounces of gold.
The Singapore Diamond Investment Exchange (SDIX) has launched a new investment-grade, standardized diamond product to rival gold as a safe-haven asset.
Higher purchases by India, the world's second-biggest consumer, could lend support to global prices that are trading near their highest level in a week.