Petra manages one of the world’s largest diamond resources of c.223 million carats. This major resource implies that the potential mine lives of Petra’s core assets could be considerably longer than the current mine plans in place at each operation, or could support higher production rates.
Key Facts
ca.0Mcts
Resource: Largest outside the majors
0Mcts
Reserves
Gross Resources
As at 30 June 2023 the Group’s gross diamond resources (inclusive of reserves) is 223.17 Mcts.
Gross Reserves
As at 30 June 2023 the Group reported gross diamond reserves of 28.35 Mcts.
Summary of Gross Reserves and Resources
The following table summarises the gross Reserves and Resources status of the combined Petra Group operations as at 30 June 2023.
| Category | Tonnes (millions) | Grade (cpht) | Contained Diamonds (Mcts) |
|---|---|---|---|
| Reserves | |||
| Proved | – | – | – |
| Probable | 93.3 | 30.4 | 28.35 |
| Sub-total | 93.3 | 30.4 | 28.35 |
| Resources | |||
| Measured | – | – | – |
| Indicated | 314.7 | 47.1 | 148.35 |
| Inferred | 1285.4 | 5.8 | 74.83 |
| Sub-total | 1,600.1 | 13.9 | 223.17 |
