Diamond Energy Customer Reviews and Ratings in 2026
In 2026, Diamond Energy has a rating of 3.3 out of 5 on Trustpilot. And it has a rating of 4 out of 5 on ProductReview. Reviews of Diamond Energy by customers focused on their pricing, customer service and any issues or queries with billing or contracts. Along with our expert Selectra opinion, we have summarised their pros and cons to help you make the right choice when switching energy provider.
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What our energy expert has to say about Diamond Energy
Diamond Energy is a solid choice for customers who prioritise renewable energy and want simple, no-lock-in plans with clear benefits like on-time payment discounts and solar feed-in credits. Its commitment to green power is impressive, backed by a portfolio including biogas, wind, and solar generation. However, as Diamond offers only one residential plan, it may not suit customers seeking a wider variety of options or more customised pricing structures. Overall, Diamond Energy effectively balances environmental responsibility with reliable, customer-friendly service.
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Pros and cons of Diamond Energy according to Selectra
Strengths of Diamond Energy
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Weaknesses of Diamond Energy
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What do customers have to say about Diamond Energy on ProductReview, Trustpilot
The table below offers an overview of the average rating for Diamond Energy based on customers opinions from popular review websites.
| Platform | Rating | Number of Reviews |
|---|---|---|
| ProductReview | 4 out of 5 | 115 |
| Trustpilot | 3.3 out of 5 | 419 |
73% of ProductReview of Diamond Energy are positive reviews.
Diamond Energy stands out for Australians who want their power bills to support cleaner energy. The retailer focuses heavily on renewables, allowing customers to choose plans with a high share of certified green electricity and offering attractive solar feed-in tariffs for households with panels. Its contracts are simple and flexible, with no lock-in terms or exit fees, so you can leave if your needs change without being penalised. Customers can also reduce their costs through rewards for paying on time and setting up direct debit, while straightforward, easy-to-read bills make it clearer to track how much you are using and spending. Together, these features make Diamond Energy a strong option for people looking to combine environmental responsibility with practical, everyday value.
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