Notification of Major Holdings Gemfields Group Limited Incorporated in Guernsey. Guernsey registration Number: 47656. South African external company registration number 2009/012636/10 Share code on JSE:GML/AIM:GEM ISIN: GG00BG0KTL52|LEI: 21380017GAVXTCYS5R31 ("Gemfields" or the "Company") Notification of major holdings LONDON, 4 AUGUST 2023 In compliance with paragraph 3.83(b) of the JSE Listings Requirements and AIM Rule 17, shareholders are advised that Gemfields received formal notification on 3 August 2023 from Rozendal Associate Holdings (“Rational Expectations”) that it, combined with related parties, now holds a total of 142,809,520 ordinary shares in the Company, equivalent to 11.68 per cent of the total issued shares in the Company. Shareholders are advised that Rational Expectations’ shareholding represents 11.69 per cent of the total issued shares in the Company that carry voting rights as at today’s date, as the Company currently holds 2,729,550 treasury shares. Rational Expectations’ completed TR-1 form has been released separately. -ENDS- Further information on Gemfields Group Limited can be found at: GEMFIELDSGROUP.COM To join our investor mailing list, contact us on: ir@gemfields.com For any press enquiries please contact us on: gemfields@camarco.co.uk ENQUIRIES GEMFIELDS Sean Gilbertson/David Lovett/Ian Hughes ir@gemfields.com T: +44(0) 20 7518 3400 SPONSOR (JSE) Investec Bank Limited NOMINATED ADVISER finnCap (AIM) & JOINT BROKER Christopher Raggett/Tim Redfern/Edward Whiley T: +44(0) 20 7220 0500 JOINT BROKER Liberum Scott Mathieson/Kane Collings T: +44(0) 20 3100 2222 FINANCIAL PR/IR Camarco Gordon Poole/Emily Hall T: +44(0) 20 3757 4980 ADDITIONAL INFORMATION ON GEMFIELDS Gemfields is a world-leading supplier of responsibly sourced coloured gemstones. Gemfields is the operator and 75% owner of both the Kagem emerald mine in Zambia (believed to be the world’s single largest producing emerald mine) and the Montepuez ruby mine in Mozambique (one of the most significant recently discovered ruby deposits in the world). In addition, Gemfields also holds controlling interests in various other gemstone mining and prospecting licenses in Zambia, Mozambique, Ethiopia and Madagascar. Gemfields’ outright ownership of Fabergé - an iconic and prestigious brand of exceptional heritage - enables Gemfields to optimise positioning, perception and consumer awareness of coloured gemstones, advancing the wider group’s “mine and market” vision. Gemfields has developed a proprietary grading system and a pioneering auction and trading platform to provide a consistent supply of coloured gemstones to downstream markets, a key component of Gemfields’ business model and has played an important role in the growth of the global coloured gemstone sector. GEMFIELDS GEMFIELDS.COM | INVESTORS |FOUNDATION INSTAGRAM | FACEBOOK | TWITTER | YOUTUBE FABERGÉ FABERGÉ.COM | INSTAGRAM | FACEBOOK | TWITTER | YOUTUBE KAGEM MINING LINKEDIN MONTEPUEZ RUBY MINING LINKEDIN Date: 04-08-2023 12:00:00 Produced by the JSE SENS Department. The SENS service is an information dissemination service administered by the JSE Limited ('JSE'). The JSE does not, whether expressly, tacitly or implicitly, represent, warrant or in any way guarantee the truth, accuracy or completeness of the information published on SENS. The JSE, their officers, employees and agents accept no liability for (or in respect of) any direct, indirect, incidental or consequential loss or damage of any kind or nature, howsoever arising, from the use of SENS or the use of, or reliance on, information disseminated through SENS.