Diversified miner Rio Tinto has announced that a selection of rough diamonds from the company’s Canadian and Australian mines will be tendered to diamond specialists in October and November.

Headlining Rio’s forthcoming “specials” tender, which showcases rough diamonds greater than 10.8 ct, is Lot number 1, Diavik Helios, a 74.48 ct Fancy yellow diamond. The Diavik Helios takes its name from the pure yellow sunlight emitted by the mythical Greek God of the Sun.