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Uncertified Diamonds and Diamond Jewellery

Emerald Diamond RingLarge 3 Stone Diamond RingDiamond Stud Earrings

Why Choose Us

Nearly all jewellery produced, plus polished diamonds up until the late 1970s were produced and sold without diamond certificates from GIA, HRD, EGL and IGI to name but a few famous diamond certification houses.

Diamond certificates in fact are a relatively new phenomena which have quite rightly emerged over the last 30 years enabling everyone to exactly know the weight, colour, purity and cut of each diamond.

We have the in house experience of fully trained Gemologists enabling us to grade any diamond put in front of us and being as accurate on our grading as GIA New York. We can put the correct market price on any diamond from £10 to £1m.
HowCashForDiamonds.co.uk are members of GIA, HRD and full members of the British Jewellers Association. We are also members of the trades diamond global inventory system Rapnet. Being a full member of these organisations, we are able to see the exact current market price of a like for like diamond that you have sent us. Enabling us to pay you the maximum price the market allows. We have all in house equipment to test for colour, purity, weight and fluorescence of your diamonds.

That is why we are more than happy to purchase any diamonds loose or in jewellery which are uncertified and without a diamond certificate.
We will purchase any uncertified Georgian, Victorian, Edwardian, or diamond from 1950s onwards to today in any shape, purity, cut, colour and carat weight without a certificate.

If you have a diamond which has no certificate and you feel it is worthy of certification, we are able to offer you the facility of certificating your diamond via us sending it on your behalf to GIA in USA or to HRD in Antwerp as we are full members of both these certificating houses. Once this has been done then your diamond would certainly be worth more with a current certificate. This whole process can be from 1 – 4 weeks.

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.
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.


We're proudly accredited by

The Jewellery Cave group of companies

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