DEBSWANA’S VALUE CHAIN The diamond value chain comprises processes that progressively add value to the diamond resource, from mining to sales. As the diamond resource passes through each intervention phase, additional value is added. Diamonds have4. several RECOVERY remarkable properties that are exploited to recover them from the 3. CONCENTRATION stream of prepared concentrate. Diamonds fluoresce when irradiated with x-rays. Diamonds have a higher density than the rock They also repel water and are attracted to that hosts them. Once the ore has been crushed grease. When the concentrate is mixed and Diamond sorting, cleaning, packaging and weighing takes to a manageable size, it is mixed into a slurry passed over a grease belt, the diamonds adhere place in a Fully Integrated Sorthouse (FISH), part of the Aquarium facility. FISH maximises diamond security while of ferrosiliconDense Mediaand water Separation in a process (DMS). known as to the grease. Diamonds also emit a unique 5. SORTING AND SALES optimising diamond sorting through the use of laser signature under laser light. technology. Debswana diamonds are then sorted and The heavier diamonds sink in the slurry while the valued by the Diamond Trading Company Botswana rest of the lighter material floats. The concentrate (DTCB) in Gaborone. Here they are sorted before that contains diamonds (sinks) is transported to being sold to De Beers and the Okavango Diamond the recovery plant and the material that floats Company. Thereafter, rough diamonds find their (tailings) isfor transported further comminution. to the recrush plant way to cutting and polishing centres, including in 2. COMMINUTION Botswana, where they are sold to manufacturers who produce diamond jewellery destined for Crushing,processes scrubbing are used and torecrush break the leading consumer markets. and fracturea manageablethe ore, liberate size. diamonds and reduce particles to Comminution is from the Latin word comminutus, meaning to lessen. Inminute mining particles. terms, comminute means to reduce to The tailings (waste or residue) from concentration, recovery and sorting, are disposed of in 6. RESIDUE DISPOSAL mineral residue. 1. MINING rock. respectively. dumps Drilling and blasting is used to break up millions of tonnes of rock and assist in the loading and transportation of ore and waste into massive trucks by large shovels and Kimberlite and waste rocktaken are tothen the loaded primary crusher and waste CLARIFICATION CONNECTION CULTURE COMPLIANCE Welcome from the MD Housing About our Values Regulations and Legislation Debswana leadership teams In your area Debswana overview Debswana Compliance Onboarding journey OLDM schools Vision and Mission Labour Relations Act Health and Wellness services Jwaneng schools Diamond Value Chain Precious and Semi-precious Stones Act Training Guest accommodation Code of Conduct and Ethics Immigration Act Safety and Sustainability development Social and recreational clubs Botswana overview Tax Compliance Transport services Environment and Game Parks Botswana and diamonds Import regulations Benefits contact details Sustainability.