De Beers has revealed its strongest diamond sales in three years following a Christmas surge in jewellery purchases, with sales 10{409126f2c1f09c9e510a010c163a4bce2c3ccfc4019bdf864d6cb2d5d8752f38} above the group’s 20-year average. The world’s biggest diamond miner made $650m from its rough stones last month, well above sales of $551m in early 2020, amounting to the […]