Kimberly Certified Rough Diamonds

Kimberly Dimaond CertificateLoose Diamonds

Why Choose Us

In our industry all bonafide diamond dealers and traders all understand a polished diamond.
When it comes to assessing and understanding a rough diamond we are able to offer the facilities in our North London Diamond office with our former DeBeers trained rough diamond expert to work out exactly the price on any rough diamond brought into us.

For this to happen, we prefer:
1. You visiting our office.
2. We need to see the Kimberley certificate
3. We will weigh the whole parcel in front of you.
4. We will individually weigh each diamond above 0.50ct. (Diamonds of this weight and above is preferred only).
5. We will then grade each diamond for colour and purity.
6. We will check for fluorescence.
7. We will then work out what the whole parcel is worth and give you our maximum offer based on current market rough diamond prices.
8. We can then put each diamond into a machine which will tell us what each diamond will end up at once it has been polished.
9. We can buy the parcel from you, or you can pay us for polishing each diamond. We can also certificate each diamond for you too.
For any of the above, it is best if you make an appointment to come into us as grading rough diamonds is a longer process than grading polished diamonds.

Rough Diamond ShapesColour Graduation  for Rough DiamondDiamond comparison Chart
Click on Image to Enlarge

As you can see from the images, we have the facilities to put the Rough Diamond into the Sarin machine in our Antwerp polishing factory , and it gives us a very good idea what the Rough Diamond will end up polished. This service we offer to all our customers.

How We Pay You For Your 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.
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      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.

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      "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.


      We're proudly accredited by

      The Jewellery Cave group of companies

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