Between 1967 and 1972 four small diamond pipes (B/K1, B/K9, B/K12 and B/K15) were discovered in an area 20km east of the Orapa kimberlite pipe. These pipes were grouped to form the Damtshaa Mine and are managed along with Letlakhane Mine from the Orapa operation by Debswana. Damtshaa has been forecast to yield 5 million carats from 39 million tons of ore that are to be mined over the 31 year projected life of mine. 

Damtshaa Mine is the youngest of the Debswana mines, operation at the mine began in 2003. Damtshaa mine was officially opened on the 25th October 2003 by the Vice President of Botswana Lt. General Seretse Khama Ian Khama who stated," The Damtshaa mine is the latest addition to the strengthening and consolidation of our position as the leading nation in diamond production." 

Commissioning of the Damtshaa Mine was carried out in the fourth quarter of 2002, with the first headfeed load recorded on the 28th October 2002. Production buildup commenced with full production reached in March 2003. The carat profile for Damtshaa Mine is not smooth through the years due to the varying grades of the different rock types in the pits. This has resulted in an average of 0,161Mcts per annum. In 2008, 533 000 carats were recovered. 

The mine has been incorporated to the Orapa & Letlhakane Mines safety and environmental programmes, and hence it is ISO14001 certified. It has thus far been audited twice by the SABS Surveillance Audit Team and confirmed to be compliant to ISO14001 requirements.