It has been one of the most talked about issues in the diamond and gem industry - to facilitate mine-to-market buying and avoiding the middle man. Implementing this, a Canadian diamond broker Colin David Ferguson has created a company - Rare Gem Investor, for those interested in investing in coloured fancy diamonds. The investor can make a direct purchase of natural fancy coloured diamonds, which are sourced through Ferguson’s access with various mining companies.

Ferguson has brands like Rare & Precious Gems, PinkLuxury, Carats.com, Diamonds Direct and Rio Tinto's prestigious Pink Diamond tenders of stones recovered at Rio’s Argyle mine in Australia. Ferguson was the only Canadian broker invited for Rio Tinto’s tender and one of 17 successful bidders at the 2007 event. He purchased seven of the stones on offer. Three of theses stones were natural fancy reds, now available at Rare Gem Investor. In comparison to diamonds, fancy coloured diamonds have scaled in investment value due to their annual appreciation and growing scarcity. They appreciate by 10 to 15 percent annually.