The miner is confident about the positive effects that supply curbs by major producers and India's two-month import moratorium will have on the market.
Superdeep diamonds likely migrated to the surface together with different parts of the former supercontinent Gondwana following violent volcanic eruptions.
Amid a wider slump, MINING.COM’s ranking was lit up by newcomer Amman Minerals, which now sits just outside the top 10 after minting at least six new billionaires since its July IPO.