gem industry metals and mining headquarters london united kingdom key people ian harebottle ceo products emerald gemstone revenue gbp 83.7 million 2012 1 net income us 47.8 million 2012 1 number of employees 439 2011 1 website gemfields.co.uk gemfields plc is an aim listed multinational natural resources company headquartered in london united kingdom specialising in the mining processing and sale of coloured gemstones in particular emeralds and rubies . the group owns the kagem emerald mine in zambia the single largest emerald mine in the world and the montepuez ruby deposit in mozambique . gemfields produces approximately 20 % of the world s emerald supply . in july 2009 gemfields commenced a formal auction programme for zambian emeralds mined at kagem . to date the company has held 15 auctions of rough emerald and beryl produced from kagem which have generated revenues totalling usd 260 million . the company has also held two traded emerald auctions not obtained directly from the company s own mining operations which generated revenue of usd 22.0 million . in june 2014 gemfields held an inaugural ruby and corundum auction in singapore from its mozambique operations . a total of 1.82 million carats were sold which generated total auction revenues of usd 33.5 million ; the company is adamant about the traceability of its stones and has implemented a mine to market strategy by which emeralds are completely traceable from mine to market . 2 3 contents 1 kagem emerald mine 2 montepuez ruby deposit 3 subsidiaries 4 stakeholders 5 references kagem emerald mine edit gemfields owns the kagem emerald mine in zambia . the pit is around 30 metres deep exposing one concordant and four discordant pegmatites over a strike length of 40 metres . 1 gemfields own 75 % of the mine while the remaining 25 % stake is held by the government in lusaka . 3 montepuez ruby deposit edit gemfields acquired a 75 % stake in the highly prospective montepuez ruby deposit in mozambique in february 2012 . the inaugural auction in june 2014 of rough ruby and corundum from the deposit yielded revenues of usd 33.5 million . subsidiaries edit gemfields limited bvi almizan development limited gemfields mining limited gemfields india pvt limited kagem mining limited 1 stakeholders edit the pallinghurst resources fund l.p. 38.55 % faberge conduit ltd 18.24 % standard life investments ltd 3.61 % investec pallinghurst cayman l. 9.89 % ngpmr cayman l.p. 8.22 % citation needed blackrock 3.57 % 4 references edit a b c d e gemfields plc united kingdom financial times 2012 retrieved 18 october 2012 mine and market united kingdom gemfields.co.uk 2012 retrieved 18 october 2012 a b midas profits soar at emerald miner gemfields united kingdom thisismoney.co.uk 2012 retrieved 18 october 2012 share structure and shareholders . united kingdom gemfields . 2014 . retrieved 18 october 2012 . retrieved from https en.wikipedia.org w index.php title gemfields & oldid 729486365 categories mining companieshidden categories pages using infobox company with unsupported parametersall articles with unsourced statementsarticles with unsourced statements from july 2014 navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version in other projects wikimedia commons languages add links this page was last modified on 12 july 2016 at 14 40 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view