Phone
You can contact the Diamond car insurance customer service team by phone on 0333 220 2004. Its opening hours are:
Mon to Fri 8am - 7pm
Sat 9am - 3pm
Sun 9:30am - 4pm
Diamond is a well-known UK insurer, part of the Admiral group of brands, that often appeals to female drivers looking for competitive pricing. Its fully comprehensive car insurance policies are rated four stars on Defaqto, indicating a good level of features and benefits, including cover for child seats, handbags.
However, customer feedback is mixed - on Trustpilot, Diamond has a low rating of around 1.7 out of 5, based on hundreds of reviews, with many customers highlighting issues around administration and communication. It remains a recognised budget-friendly option, but one where customer experience appears less consistent than some competitors.
Defaqto is a leading independent reviewer of financial products. Diamond's fully comprehensive car insurance and multi-car policies receive a four-star Defaqto rating for features and benefits, while its third-party, fire and theft policy receives five stars.
If you choose a fully comprehensive Diamond car insurance policy, the following is included:
These are the average prices of Diamond car insurance policies across a wide range of drivers.
How much you personally pay will be influenced by your age, location, driving history and other factors, so could differ significantly
Diamond's Comprehensive Car Insurance policy gives you extra cover and benefits compared to third-party, fire and theft policies. It includes:
Handbag and childseat cover
Courtesy car cover
European cover
Battery cover
Charging equipment cover
Diamond car insurance offers a number of optional extras you can add on to your car insurance policy, usually for an extra premium. You'll be able to add on personal injury cover, hire vehicle cover, motor legal protection and breakdown cover to your policy.
However, you don't always need to take out these extras with the same provider - you also have the option out taking out a separate policy for things like breakdown cover. You should check whether it will be more expensive to add it to your Diamond policy or buy it from another provider - MoneySuperMarket research has found that the average cost of buying separate breakdown cover (across all breakdown providers) is £27
Which provider is best for you will depend on your own needs and circumstances. Here are some advantages and disadvantages of Diamond car insurance to help you make your decision:
Part of Admiral Group plc, a large UK insurance group, with a strong reputation
Offers cover directed at female drivers, with policies including handbag and child seat cover
Simple policy options won't be overwhelming with choices
A poor Trustpilot score of 1.7 with many complaints about service
No claims payout percentage or claims score on Which?
Breakdown cover and motor legal expenses are only available as an add-on
These are all standard fully comprehensive car insurance policies. Many providers also offer higher-tier options, which will include more features for an extra cost.
Diamond Comprehensive | Sheilas' Wheels Comprehensive | Go Girl Comprehensive | Admiral Essentials | |
|---|---|---|---|---|
Price | £1034^ | £419^ | £1001^ | £645^ |
Defaqto rating | ⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐ | ⭐⭐ |
Which? claims rating^ | N/A | N/A | N/A | 74%^ |
Claims payout rate | N/A | N/A | N/A | 98.9% |
Uninsured driver promise^ included? | Yes | Yes | Yes | Yes |
Courtesy car included? | Yes | Yes | Yes | Yes |
Administration fees^ | £15 for vehicle-related changes, £5.50 for registration changes | £27 assisted, £15 if made by yourself | Not disclosed | £15 |
Further information |
Price data from MoneySuperMarket. Other data from provider website and correct as of March 2026.
Diamond is a long-standing UK insurer that has historically targeted younger drivers, particularly women, and often appeals on price. While it can be competitively priced, customer feedback is mixed, so young drivers (and parents) may want to balance cost against service and support when choosing a policy.
However, it is not typically the cheapest option for new drivers. Our research shows that on average, the lowest-cost policies for drivers who have held their licence for less than a year were from Carole Nash
Diamond doesn't offer policies specifically designed for young drivers, so if you're searching for black box (telematics) insurance, learner driver insurance, or temporary car insurance, you should look for other providers.
💡 Top tip: If you bought your Diamond car insurance through MoneySuperMarket, you can see your policy information on our website. Just sign in and click on your dashboard.
You can contact the Diamond car insurance customer service team by phone on 0333 220 2004. Its opening hours are:
Mon to Fri 8am - 7pm
Sat 9am - 3pm
Sun 9:30am - 4pm
You can live chat with online agents for help with your car insurance, regardless of your policy type.
Agents are available Monday-Friday 8am-7pm, Saturday 9am-3pm and Sunday 9:30am-4pm.
Log in to the MyAccount section of the Diamond website to view your policy documents and make changes.
These online portals are available 24/7.
If you need to make a claim on your Diamond car insurance policy, contact Diamond as soon as possible after an incident.
You’ll usually need your policy number, details of what happened (date, time, location), information about any other drivers or vehicles involved and photos or evidence.
Opening hours:
Mon: Fri 8am - 6pm
Sat: 9am - 4pm
Sun: 10am - 4pm
🚩 You will not get any money refunded if you have already made a claim on your car insurance
You will need to cancel your car insurance with Diamond directly. You cannot cancel via MoneySuperMarket.
You can cancel your Diamond car insurance online via their website.
Yes, you can cancel your Diamond car insurance at any time, but your refund will be reduced by fees and the time you’ve been covered if your policy has already started.
Yes, Diamond charges cancellation fees. The amount varies depending on when you cancel:
Prior to the policy auto-renewing: No charge
Within the first 14 days of the policy starting: £25 admin fee
More than 14 days after the policy starts: £60 admin fee
You will also need to pay for all the days you were covered for.
No, any payments for add-ons such as breakdown cover are non-refundable.
Price comparison websites like MoneySuperMarket can help you find cheaper car insurance from providers such as Diamond compared with going direct. There are several ways we can help you save money:
our Price Promise1 means if you find the same policy cheaper elsewhere (including on a provider’s website), we’ll refund the difference and give you a £15 gift card
our Price Optimiser gives you tailored tips on how to adjust your policy to reduce the price – 83%
our SuperSaveClub2 rewards programme gives you added perks, including £15 when you buy a car insurance policy and benefits like a Free Days Out annual pass
We also make it quick and easy to compare Diamond policies alongside other insurers, so you can check you’re getting the best deal and see if the same level of cover is available for less elsewhere.
If you bought your Diamond car insurance through MoneySuperMarket, you can find your policy information by logging into our website or app. Your active policies will be shown on your dashboard.
Alternatively, you can find your Diamond car insurance policy on the Diamond MyAccount customer portal by logging into your account.
Yes, Diamond charges an administration fee for changes you make to your car insurance via your online account - £15 for vehicle-related changes and £5.50 for registration changes. Your premium may also go up or down depending on the change.
Yes, you can add named drivers to your Diamond car insurance. To add a driver to your Diamond car insurance policy, log into your Diamond online account and go to the policy overview page.
Adding extra drivers to your Diamond car insurance may increase or decrease your car insurance premium, depending on their risk profile. MoneySuperMarket data found that adding a young driver (under 25) to any car insurance policy increased premiums by £768.94
Diamond car insurance policies do not include breakdown cover as standard, but it can be purchased as an optional add-on for an extra fee. You can also buy breakdown cover from a different provider if you have Diamond car insurance.
Most Diamond car insurance policies will be set up for auto-renewal. This means that after your existing contract ends Diamond will start a new one for you using the payment details they have on file. No action is required from you and there will be no break in your car insurance cover.
Auto-renewal does not mean you will get the same cover at the same price as you had before. Diamond must contact you in advance of your policy renewing to inform you of any price or policy changes. If you don't want your Diamond cover to auto-renew, you need to inform Diamond before your policy end date. You can do this through your Diamond account.
Before letting your Diamond policy auto-renew, it's worth comparing car insurance quotes to see if you could get a better deal elsewhere. Shopping around can help ensure you’re not paying more than necessary, as renewal prices aren’t always the most competitive.
Yes, while Diamond is designed for female drivers, men can also take out a Diamond car insurance policy.
Yes, you can pay for your Diamond car insurance policy via monthly Direct Debits. This is usually more expensive than paying one annual lump sum, because car insurers add interest onto monthly payments.
Diamond is a UK-based insurer and part of the Admiral Group, one of the largest car insurance providers in the country. It was originally launched with a focus on women drivers, but now offers policies to a broader range of customers.
While it’s best known for car insurance, Diamond also offers cover for vans, as well as landlord insurance, home insurance and travel insurance.
Diamond car insurance is underwritten by Admiral Insurance (Gibraltar) Limited, part of the wider Admiral Group. This means Diamond is effectively a brand within the group rather than a separate insurer taking on risk itself.
Your policy is typically arranged and administered under the Diamond brand, but the underwriting insurer is responsible for covering risk and paying out claims.
This structure is common in the UK insurance market, especially among brands that sit within larger insurance groups.
There are a couple of implications to keep in mind:
your claims experience is tied to the underwriting insurer
you may deal with different teams depending on the type of query
There are no inherent drawbacks, but it’s still worth checking your policy documents so you know exactly who provides your cover.
At MoneySuperMarket, we want to give you clear, accurate and trustworthy information so you can make confident financial decisions for your circumstances.
Every page on our website goes through a careful editorial process before it is published. It’s written or reviewed by one of our experienced experts, checked for accuracy, and updated regularly to reflect the latest information.
We do use AI tools to support our research and drafting, but a human editor is always in the loop to review, fact-check and approve everything before it’s published, so you can trust that what you’re reading is both reliable and up to date.
You can read more in our editorial guidelines.
We get paid by the companies we work with, but the payment we get doesn’t have any bearing on the information we provide. We get paid in different ways, depending on the type of product or service you buy through us. Our goal is to search deals from as wide a range of companies as possible, but we only show results from our partner providers.
Our comparison service is, and will always be, free to use.
One of the best ways to get the lowest prices and best deals is to compare quotes from different companies. We do the work for you, comparing quotes side-by-side and giving you all the information you need so you can choose the right deal for your needs and your wallet.
We don’t give recommendations or financial advice, but we give you clear information so you can choose financial products that suit your circumstances.
No, not every company can be included in our service. This is because some companies don’t want their products included on comparison sites, and some decide that they would rather not pay a fee. There are also a few smaller providers who can struggle to cope with the volume of customers that can find their products if they appear on MoneySuperMarket.
Our goal is to search deals from as wide a range of companies as possible so that you can choose the deal that suits you.
Yes, you can earn SuperSaveClub rewards when you buy car insurance through MoneySuperMarket.
This includes:
Up to £15, which you can withdraw as a pre-paid Mastercard or a gift card for brands like Sainsbury's and Amazon.co.uk
Free Days Out pass (worth £180), which gives free entry to a range of UK attractions
Cashback of up to 10% when you spend at brands including eBay, Just Eat and Argos
To earn SuperSaveClub rewards on purchases you must:
Sign up to SuperSaveClub (it's free)
Be signed in to your account when you make the purchase
More information can be found on our SuperSaveClub homepage.
Yes, car insurance is included in our Super Save Price Promise.
If you buy through us then find the same deal for less we will:
refund the difference
give you a gift card worth up to £15
Terms and conditions apply. More information can be found on our Price Promise page.
Reviewed on 15 May 2026
YouGov Survey 1st July 2024 to 30th June 2025. Net Recommend score derived from “Which of the following online service websites would you recommend to a friend or colleague, or tell them to avoid?” Base: Current Customers of (MoneySuperMarket n=18,382, Compare the Market n=16,802, Go.Compare n=10,162, Confused.com n=8,229, Uswitch n=528).
Based on car insurance policies sold through MoneySuperMarket between January 2026 and March 2026 where the user requested Breakdown Cover and it wasnt included as standard cover.
You might see a premium policy with a lower average sold price than the basic option. That's not because it’s cheaper overall, but because lower-risk customers are buying it. People whose individual circumstances mean they receive higher premiums often choose the most basic cover to keep costs down, while those offered cheaper premiums are more likely to upgrade to a higher-tier product.
Based on the 10th percentile of comprehensive car insurance policies sold through MoneySuperMarket in the month of March 2026.
83% of users completing the car insurance Price Optimiser journey and actioning its insights on MoneySuperMarket between 12.02.26 and 16.02.26 found a cheaper quote.
Based on Car Insurance enquiries on MoneySuperMarket between 2025-01-01 and 2025-04-01 where the quote was for comprehensive covertype.
Based on the median annual price of comprehensive car insurance policies sold through MoneySuperMarket in March 2026.
Based on the median annual price of comprehensive car insurance policies sold through MoneySuperMarket in March 2026.
Based on the median annual price of comprehensive car insurance policies sold through MoneySuperMarket in March 2026.
Based on the median annual price of comprehensive car insurance policies sold through MoneySuperMarket in March 2026.
Source: Which?, 2026, Will your car insurer let you down when it matters most?, https://www.which.co.uk/news/article/will-your-car-insurer-let-you-down-when-it-matters-most-azKzL9m9ippy
An 'uninsured driver promise' is a car insurance policy feature where you will not have to pay your excess and will not lose your no-claims discount if your car is hit by an uninsured driver and the accident wasn't your fault.
Administration fees are charges insurers apply when you make changes to your car insurance policy. Examples of mid-term policy changes that could incur an administration fee include: changing your address, updating your job title, adding or removing a driver, changing your vehicle.
These fees cover the cost of processing the change, rather than the insurance risk itself. They are separate from any change in your premium. For example, if you update your details, your price may go up or down based on risk, then an admin fee may be added on top.
Based on the average annual price of policies sold through carole nash on MoneySuperMarket between January 2026 and March 2026 and the provider sold with over 200 sales in the period, where only one driver was on the policy who had held a full uk car insurance license for at least 1 year.
Based on the average annual price of policies sold through churchill on MoneySuperMarket between January 2026 and March 2026 and the provider sold with over 200 sales in the period, where only one driver was on the policy who had held a full uk car insurance license for at least 1 year.
Based on the average annual price of policies sold through marmalade essentials on MoneySuperMarket between January 2026 and March 2026 and the provider sold with over 200 sales in the period, where only one driver was on the policy who had held a full uk car insurance license for at least 1 year.
Defaqto is a leading independent reviewer of financial products. Four stars is for 'A product with a good level of features and benefits.
Individual insurance products from Diamond may have different ratings. Data from the Defaqto website. Data from April 2026.
Based on the median annual price of third party only car insurance policies sold through MoneySuperMarket in March 2026.
Defaqto is a leading independent reviewer of financial products. Three stars is for 'a standard product providing an average level of features and benefits'.
Individual insurance products from Diamond may have different ratings. Data from the Defaqto website. Data from April 2026.
Based on the median annual price of third party, fire & theft car insurance policies sold through MoneySuperMarket in March 2026.
Defaqto is a leading independent reviewer of financial products. Four stars is for 'A product with a good level of features and benefits.
Individual insurance products from Diamond may have different ratings. Data from the Defaqto website. Data from April 2026.