Sell your diamonds

We give the best price in the UK diamond industry

We pay via bank transfer or we can pay you cash if requested.


Items you can sell include

Branded jewellery we purchase

Luxury watches we purchase

How to assess the carat weight
of your diamond?


How to assess the clarity
of your diamond?


How to assess the colour
of your diamond?


How to work out the price
of your gold/platinum?


Customer Reviews

Cash for Diamonds
Really simple process although took slightly longer than I thought (only by a day or so). Jonathan clearly knows stones and gold well and you feel in safe hands. Although I didn't achieve nearly close to what I'd hoped (stone clarity not as we'd been sold it from another retailer) i felt in well informed and advised. Well done!
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Recent Diamond Jewellery News

Weekly Diamond Report

About us

Jonathan Williams (MD)

Jonathan has been in the diamond and jewellery industry for over 40 years. He was one of the leading manufacturer's in the UK and in the last 5 years has concentrated his skills in the ever growing global diamond industry.

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Thomas Gardiner
Diamond & Jewellery Purchaser

Thomas has been in the diamond and jewellery industry for over 10 years. His knowledge of the diamonds industry is on the same level as Jonathan Williams, and having young eyes, his diamond grading is second to none!

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Premila Halai
Financial Controller

Premila Halai, has been with our company on the financial side for 8 years, since we started HowCashforDiamonds. She makes all the payments for our diamond purchases on the same day.

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Contact Our Experts

Our in-house diamond experts have between them 50 years experience within the diamond and jewellery industry. This gives the assurance that we are well placed to offer you the best possible price within the market for your goods. Our process is transparent, friendly, safe and quick. All your goods sent to us are all fully insured whilst in our possession under our Jewellers Lloyds of London Insurance Policy.


We're proudly accredited by

The Jewellery Cave group of companies

Diamond Calculator

Please provide the details below to access and open the calculator and get an instant price for your diamond and or diamond jewellery.
1. Enter Details 2. Access Calculator
3. Get an instant price

Next step: Fill in all the details below, to get an instant cash price for your diamond. Our calculator is giving prices for single diamonds only.

Click to select shape

"We will also pay you the market price for the gold or platinum in your diamond jewellery."
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