Gemfields Emerald Auction Fetches $31.6 million

Gemstone mining and marketing company, Gemfields, said it made a record $31.6 million from its auction of rough emeralds held last week in Singapore, adding that it underscores the strong demand for its “ethically sourced” gemstones from its Kagem Mine in Zambia..
On a like-for-like basis, prices have increased 63 per cent to $42.7 per carat among the higher quality stones since December 2010,