Overall rating
3.48 / 5
from 539 reviews
Customer reviews
Customer reviews
Diamond Energy reviews
What do Diamond Energy customers actually think? Below are live customer ratings aggregated from public review platforms, refreshed regularly. Ratings change over time, so always weigh them against a plan comparison for your own address.
Customer ratings
How Diamond Energy is rated
Live ratings aggregated across public review platforms.
Trustpilot
3.3 / 5
419 ratings
ProductReview
4.1 / 5
120 ratings
Ratings are aggregated live from public review platforms and refreshed regularly. They reflect the experience of Diamond Energy customers across electricity and gas, and can change over time.
Common questions
A Selectra expert answers your most common Diamond Energy review questions
Diamond Energy's customer ratings are aggregated live above from public platforms such as Trustpilot and ProductReview. Ratings shift over time, and the right retailer depends on your usage and network, the best test is to compare Diamond Energy against other retailers for your address.
They are pulled live from the Selectra Reviews service, which aggregates published customer ratings across review platforms. The overall figure is a weighted blend; the per-platform cards show each source's own average and how many ratings it is based on.
See live Diamond Energy rates by state, then compare them against the reference price and other retailers.
100% free
Compare
in minutes
Independent comparison
Reviews are one signal, price is another
A good rating does not always mean the cheapest bill. Compare Diamond Energy against other retailers that supply your address to find the plan that fits how you actually use energy.