Diamond is owned by the Admiral Group, a large Welsh insurance company listed on the London Stock Exchange and in the FTSE 100 Index. The group also owns Admiral, Elephant and Bell, as well as comparison site Confused.com.
Although originally marketed as car insurance for women drivers, law changes mean that Diamond now offer insurance to everyone.
Their headquarters are based in Cardiff, UK.
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Car insurance
Ranked 9th of 49 providers reviewed
| Customer happiness score | 62.36% |
|---|---|
| Customer trust score | 63.83% |
| Complaints performance | 63.04% |
| Transparency rating | 75.13% |
|
Fairer Finance Score Reviewed Autumn 2026 |
66.09% |
