The price of diamond engagement rings is being pushed up due to demand from brides in China, according to one company.
Gem Diamonds, which operates in Australia, claimed the cost per carat increased by 44 per cent to $2,422 (£1,513) in the last month, compared with overall costs in the third quarter.
Newspaper the Australian reported yellow diamonds produced by the company will also see a 25 per cent rise in cost as their popularity grows.
Clifford Elphick, chief executive of Gem, said: "Diamond prices have continued to strengthen, driven by continued demand mainly from the East."
Diamond producers have also began to recover from the recession, which saw demand for the gemstones drop in the last few years, the newspaper said.
Sales of diamonds in European countries and the US are likely to be strong this Christmas, Paresh Sanghvi, chief executive of Diambel NV, recently suggested to Daily News and Analysis.