Our History
Since listing on AIM in 1997, Petra has grown significantly from a junior diamond explorer to a leading independent diamond mining group, quoted on the Main Market of the London Stock Exchange.
2025
                - Petra Diamonds sold the Williamson Mine in Tanzania in May 2025
- Proposed financial Restructuring: Maturity of debt extended by c. 4 years; Rights Issue raising US$25m
2024
                - Petra Diamonds sold Koffiefontein to Stargems Group in October 2024
- Entry into long-term Power Purchase Agreements for renewable energy procurement at South African Operations (anticipated to be implemented FY26 onwards)
2023
                - Implementation of the Petra Culture Code
2022
                - Sustainability Framework established and integrated across the business.
- Petra redefined its Purpose: Creating Abundance Through Rarity.
- Successful debt reduction through tender of US$146m 2L notes.
2021
                - Petra completed a capital restructuring and 8,844,657,929 New Ordinary Shares were admitted to trading on the London Stock Exchange’s main market for listed securities.
- Petra sold an exceptional Type IIb blue diamond recovered at the Cullinan Diamond Mine for US$40.2 million, or US$1,021,357 per carat; the highest price per carat Petra has achieved for a single stone.
 
                    2020
                - Petra’s annual production decreased to 3.6 Mcts, due to the disruption to operations caused by the outbreak of the COVID-19 pandemic.
- Petra reached agreement to dispose of its exploration assets in Botswana in July 2018.
2019
                - Petra’s annual production from continuing operations increased to 3.9 million carats.
- Launch of artisanal small scale mining (“ASM”) initiative at the Koffiefontein mine.
2018
                - Petra completed a Rights Issue to raise US$178 million.
- Petra’s annual production increased to 4.6 million carats (3.8 million carats excluding KEM JV).
- Petra completed the disposal of its 75.9% interest in the KEM JV in December 2018.
 
                    2017
                - Petra refinanced and rationalised its debt profile by raising US$650 million through a senior secured second lien Loan Notes Issue.
- Petra’s production increased to 4.0 million carats.
 
                    2016
                - Petra acquired a 49.9% interest in the Kimberley Mines in South Africa.
- Petra combined its operations in Kimberley with those of Ekapa Mining via the formation of the Kimberley Ekapa Mining Joint Venture.
- Petra’s production increased to 3.7 million carats.
2015
                - Petra raised US$300 million through an inaugural senior secured second lien Loan Notes Issue.
- Petra’s production increased to 3.2 million carats.
- Petra paid a maiden dividend 3.0 US cents per share.
2014
                - Petra divested of the fissure mines Sedibeng and Star, which were no longer core to the Group’s portfolio; the Helam mine commenced a process to be placed on care and maintenance.
- Petra’s production increased to 3.1 million carats.
 
                    2013
                - Petra’s production increased to 2.7 million carats.
 
                    2012
                - Petra’s production doubled to 2.2 million carats.
2011
                - Petra raised US$325 million via an equity fundraising. The majority of the funds raised were used to acquire a majority interest in the Finsch mine in South Africa.
- Petra stepped up from AIM to the Main Market of the London Stock Exchange.
2010
                - Petra’s annual production rose to over 1 million carats.
- Petra acquired a majority interest in the Kimberley Underground mine in South Africa.
 
                    2009
                - Petra acquired a majority interest in the Williamson mine in Tanzania.
- Petra raised US$120 million via an equity fundraising – the new funds enabled Petra to increase its ownership in the Cullinan Mine to 74%.
2008
                - Petra acquired an initial 37% interest in the Cullinan Mine in South Africa.
- Petra withdrew from exploration activities in Angola further to the global economic downturn and a strategic decision to focus on cash generative production.
2007
                - Petra acquired a majority interest in the Koffiefontein mine in South Africa.
2005
                - Petra merged with ASX-quoted Crown Diamonds, introducing three producing diamond mines to the Group (the Fissure mines: Helam, Sedibeng and Star).
- Petra acquired Kalahari Diamonds (exploration arm in Botswana).
 
                    2004
                - Petra entered into a joint venture with BHP Billiton to continue exploration at Petra’s Angolan projects.
1998
                - Petra made new kimberlite discoveries in Angola – over the coming years, a sizeable kimberlite field was identified in Alto Cuilo.
 
                    1997
                - Petra listed on AIM with a market capitalisation of <£10 million.