Knight Frank’s Q1 2019 Luxury Investment Index reveals that coloured gemstones are outperforming the wider jewellery market.

The report specified threefold growth in ruby sales between 2006 and 2016, with record prices per carat rising to US$1.2m in 2016.

Sean Gilbertson, CEO of Gemfields, a supplier of responsibly sourced coloured gemstones, commented: ‘The swing towards precious coloured gemstones is overwhelming. The past decade has seen the world record prices for an emerald and ruby surpass that of a colourless diamond on a per carat basis… Responsible sourcing will receive ever-increasing attention and become progressively more important to consumers, making gemstone provenance perhaps the key driving factor.’