Gemfields’ proprietary auction process was introduced in 2009, and has transformed the coloured gemstone industry, introducing consistency and transparency to the international supply of rubies and emeralds. Before each closed auction, rough gemstones are sorted and graded by colour, size and clarity in a consistent manner, meaning buyers can trust the supply and are able to buy the product ranges that suit their needs.

Our auction platform provides unparalleled visibility throughout the sales process. Each bidder is vetted to ensure that they share Gemfields’ ethos of responsible practice before they are invited to attend an auction; government representatives from the gemstones’ home country are provided complete transparency and involved at every stage; and proceeds from sales are repatriated to our ruby mine in Mozambique and emerald mine in Zambia.

Gemfields is lucky enough to have trusted auction partners all over the world. Each one listed below is fully authorised, upholds our core values of transparency, integrity and legitimacy and shares our concern for sustainability.