Sell GIA Certified Diamonds


Why Choose Us
We are always extremely happy to purchase any diamond on the above certificates and we probably pay the most in the industry for two reasons.

We continue to welcome clients for any certificated diamond from all parts of the globe inclusive of Europe, USA, Middle East, India, The Far East and obviously the UK. No diamond is too large for us to purchase. To date the largest single diamond we purchased in our North London Diamond office was in excess of £1m.

In addition, We always need diamonds for our own individual clients who may be getting engaged or may want solitaire pendants or may want solitaire diamond earrings or may just want to invest in a certificated diamond.

It is recognised in our diamond industry that the best diamond certificate to have is a GIA certificated diamond, as this is the most accurate certificate within the industry hence if you are selling your Certificated diamond, it’s resell value will be highest if it’s on a GIA certificate which our company are members of.

To make the process even easier for you and to speed the whole process up you can email, telephone, live chat with us or just come into our North London Diamond office and tell us your certificate number. We can locate your actual diamond on our computer with the certificate number you provide us with and then we will be able to make you an instant offer for your certificated diamond.

How We Assess Your Diamonds

When your certificated diamond is with us, the first thing we will do is to make sure it matches your certificate, we will:

1. Make sure the diameter of your diamond matches the certificate
2. Make sure the colour matches stated on the certificate.
3. Make sure the purity of your diamond matches the certificate
4. Make sure the weight matches the certificate .
If all the above is in order then we will give you our maximum best price, based on the current market price of your diamond.

How We Pay You For You Diamonds

Once you apply on-line or by phone or by live chat for one of our Royal Mail Special delivery Diamond packs we will automatically send you one to the name and address given to us. We will send it out to you with a pouch for your goods , plus a bubble wrap bag for you to put your pouch in, and then these 2 items with your goods, you can place in our Royal Mail bag and send it to us from your local Post Office. Our free diamond pack which we have sent you is automatically insured for up to £550. If your goods are worth more which normally they are, then when you get to the Post Office Counter please say that you wish to pay the extra cost of £2 on our parcel which will then give you a full insurance cover of £2500. The £2 we will reimburse you when we purchase your items.

When your parcel has arrived with us the next day before 1pm we will sign for it and then we will process your parcel through our system. Once we have evaluated your goods we will contact you by phone preferably to tell you the maximum price we can pay for your goods.
Assuming you are happy with our offer we will then ask you for your bank details and do a BACS transfer direct into your account .

In the unlikely event of us not purchasing your items, we will return to you free of charge, in a fully registered diamond pack back to the address given to us at your request. The pack will be fully covered by us irrespective of its value for the maximum insurance value of £2,500.

If you do not feel comfortable using the Royal Mail, please come in and visit us at our premises at 48b Hendon Lane, London N3 1TT.

Opening Times
Monday to Friday 10am – 4pm without an appointment
or Saturday 9am – 1pm by appointment only.

Contact Info
Telephone us on 0208 446 8538
Contact us on Live Chat
Send us e-mail at [email protected]

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."

      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.


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      The Jewellery Cave group of companies

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