RE: Primary benefication22 Oct 2025 17:23
There has been much talk also of the missing 15k of carats and again when asking AI for help I was interested to find out there is always a loss of carats during primary benefication, now the latest RNS is clever with its wording of amount of carats “in excess of 120,000” so no one knows the final figure but the industry average is 5% our is double and could be for the reason that is outlined below
Losing 15,000 carats (from 135,000 to 120,000) during beneficiation is a significant reduction, representing about an *11% loss*. Whether this is considered "a lot" depends on several factors:
1. *Nature of the Ore*:
- Some diamond ores have a high percentage of low-quality or industrial-grade diamonds, which may be discarded during beneficiation. If the 15,000 carats lost are mostly unusable or substandard material, the loss might be justifiable.
2. *Processing Efficiency*:
- High-quality beneficiation processes are designed to minimize loss. If the loss includes recoverable, gem-quality diamonds, this could indicate inefficiencies or issues in the crushing, sorting, or recovery stages.
3. *Diamond Size Distribution*:
- If the ore contained many small diamonds, losses might be higher because tiny stones are harder to recover and are sometimes discarded as uneconomical.
4. *Industry Standards*:
- In the diamond industry, a typical loss of carats during beneficiation is often less than 5%. Losses exceeding this amount may raise concerns about the processing methods or the quality of the ore.
If this loss includes a significant proportion of gem-quality diamonds, it could indicate a problem with the beneficiation process, such as excessive breakage or inefficiencies in recovery. It might be worth reviewing the processes used to ensure the loss is within acceptable limits.
Again no expert but we used a new process so did this help or hinder the final amount of carats lost as I expect more carats are lost thro further benefication so will we get a better price as the industry experts can see a reduced cutting loss in the next process 🤷♂️