Gemfields shares tumble as CEO Sean Gilbertson exits amid challenges
30th Jun 2026 14:22
(Alliance News) - Gemfields Group Ltd said on Tuesday Chief Executive Officer Sean Gilbertson will step down, with effect from July 15. Read More
(Alliance News) - Gemfields Group Ltd said on Tuesday Chief Executive Officer Sean Gilbertson will step down, with effect from July 15. Read More
Gemfields Group Ltd - London-based miner and marketer of coloured gemstones - Says revenue generated from an emerald auction held in Bangkok from May 4-21 is USD26.8 million, down from USD32.0 million earned in auction from August 25 to September 11, 2025. Gemfields only held one Emerald auction in 2025. Says 185,135 carats were offered for sale, with 183,385 carats sold. Average realised price is USD146.08 per carat, down from USD160.78 in September. Emeralds were extracted from Zambian-based Kagem Mining Ltd, which is 75% owned by Gemfields. Read More
Gemfields Group Ltd - London-based miner and marketer of coloured gemstones - Confirms that its "G-factor for natural resources" for its 75%-held Zambia-based Kagem Mining Ltd stands at 17% for 10 year from 2016 to 2025, down from 20% for the 2015-2024 period. Over this period, G-factor for 75%-held Montepuez Ruby Mining Ltda in Mozambique is at 26%, up slightly from 25%, however. The "G-factor for natural resources" reveals the percentage of natural resource revenue paid to the government of the host country in the form of mineral royalties, corporation tax and, where the relevant government is a shareholder, dividends. Read More
(Alliance News) - Gemfields Group Ltd on Thursday reported another annual loss, though narrower, as operational disruptions in Mozambique and Zambia weighed on performance. Read More
(Alliance News) - Gemfields Group Ltd on Tuesday said its annual loss narrowed despite a "difficult" 2025. Read More
Gemfields Group Ltd - London-based miner and marketer of coloured gemstones - Generates revenue of USD53 million at an auction of rough rubies held this month. This is the first auction to include material from Montepuez Ruby Mining Ltda's second processing plant. Gemfields owns 75% Montepuez Ruby Mining in Mozambique. The last ruby sale was held in June 2025, when Gemfields earned USD31.7 million in revenue, down from USD68.7 million in June 2024. In December 2024, revenue was USD46.2 million. The December 2025 auction was deferred. Read More
Gemfields Group Ltd - London-based miner and marketer of coloured gemstones - Says auction revenue drops 34% to USD129 million in 2025 from USD196 million in 2024, and drops 47% from USD242 million in 2023. Notes that the second processing plant at Montepuez Ruby Mining Ltda in Mozambique is now in its final commissioning stage, with the project being delivered materially on budget. Expects commissioning to be completed "imminently". Says it looks forward to introducing the first rubies produced by this plant to the market at the February 2026 mixed-quality ruby auction. Read More
Gemfields Group Ltd - London-based miner and marketer of coloured gemstones - Generates revenue of USD25.4 million at an emerald auction held between November 17 and December 4, 2025, up 55% from USD16.4 million at a sale from April 11 to April 29. Says 45 lots were sold of the 46 lots offered for sale, at an average USD7.46 per carat. Gemfields has conducted only two emerald auctions this year. Emeralds were extracted from Zambian-based Kagem Mining Ltd, which is 75% owned by Gemfields. Read More
(Alliance News) - Gemfields Group Ltd said on Thursday operations at its new processing plant in Mozambique came under renewed attack this week. Read More
Gemfields Group Ltd - London-based miner and marketer of coloured gemstones - 'Mini-auction' of Mozambican rough rubies from Montepuez Ruby Mining Ltda raises USD11.0 million in revenue. The auction was held in Bangkok on Monday to Friday last week. Gemfields says 62% of the 297,449 carats of rubies on offer were sold at an average price of USD59.43 per carat. MRM is 70% owned by Gemfields and 30% by Mozambican partner Mwiriti Ltda. Read More
(Alliance News) - The following stocks are the leading risers and fallers on AIM on Friday. Read More
(Alliance News) - European stocks rounded off the week in the green on Friday, as US President Donald Trump introduced 100% tariffs on pharmaceutical products and investors digested Thursday's positive US gross domestic product reading. Read More
(Alliance News) - Gemfields Group Ltd on Friday described its interim financial performance as "disappointing", after incurring a loss due to a slump in auction revenue and skipping a dividend. Read More
(Alliance News) - Gemfields Group Ltd reported on Tuesday it expects to swing to loss in the first half of 2025 due in part to a slump in auction revenue. Read More
(Alliance News) - Stock prices in Europe opened largely higher on Friday, looking set to round off a positive week for equities with another gain. Read More
Gemfields Group Ltd - London-based miner and marketer of coloured gemstones - Generates revenue of USD32.0 million at an emerald auction held between August 25 and September 11, 2025, nearly doubled from USD16.1 million in November 2024. But the latest auction is down 8.5% from USD35.0 million at auction held in May 2024. Average realised price of USD160.78 per carat in September, up from USD113.96 in November 2024. Emeralds were extracted from Zambian-based Kagem Mining Ltd, which is 75% owned by Gemfields. Read More
Gemfields Group Ltd - London-based miner and marketer of coloured gemstones - Confirms that it completed the disposal of Faberge Ltd to SMG Capital LLC on Friday. Gemfields previously announced on August 11 that it had agreed to sell its entire interest in Faberge for USD50 million, with USD45 million payable on completion and the remaining USD5 million comprising quarterly revenue payments. Read More