Ask first, post later
Start with a question, not a parcel. Send a photo on WhatsApp or call, and you will get a straight answer on what testing tier suits your item and what the report will cover. None of it commits you to posting anything.
This is a UK-wide postal testing service. There is no shop to visit and no counter. Wherever you live, the process is the same: ask first, then decide.
How the grading service works
Gem work is handled in-house by GoldPaid's gem specialist. We are not a UKAS-accredited gemmological laboratory; if you need a UKAS-accredited grading report (for example for a high-value insurance schedule), we will tell you straight and point you at AnchorCert Gem Lab as the escalation route. For most consumer, probate and trade gem questions, the in-house report is the right tool at the right price.
- WhatsApp a photo. A photo of the stone (loose or set) is enough for us to give an honest read on whether grading is the right tier and confirm the £85 fixed price. There is no charge for this step.
- Combined parcel. Send the stone in our prepaid Special Delivery pack. If you are also testing metal, both travel in one parcel.
- In-house grading. Our gem specialist runs the full grading workflow: 4Cs measurement, dimensions and proportions, inclusion plotting, lab-grown screen.
- Written report. A clear grading report with a plain-English summary, returned with the item.
- Item returned by Special Delivery. Same insured return route as the metal-testing service. Return postage included.
What a full grading report contains
A full grading report measures and records: carat weight, colour grade, clarity grade, cut grade, polish and symmetry grades, fluorescence, dimensions and proportions, an inclusion plot, and a screen for lab-grown identification. The report is written for a non-specialist with a plain-English summary on the front page.
For most consumer, probate and trade purposes (sale, family record, insurance schedule under specialist policies that accept independent valuation) the in-house report is the right document. Where a UKAS-accredited record is specifically required (typically for high-value scheduled insurance under a named-scheme policy), the report flags it and points you at AnchorCert Gem Lab in Birmingham or London as the escalation route.
When triage is the right step instead
If the question is "is it a real diamond at all", the £40 gem triage screen is the cheaper and faster route. Full grading is the right step when the diamond is genuine and you need a written record — for sale, insurance, or estate paperwork. Ask first and we will tell you straight which tier suits your stone.
How we run the test
- WhatsApp the photo. Tell us what you have, what you are trying to confirm, and what you would like the report to cover.
- Choose the pack. Single item, family pack, estate pack, probate pack, plating check, or an in-house gem report — pricing is on the pricing page.
- Free insured label. Special Delivery, tracked, signed for. Print at home or scan a QR at the counter.
- Tested at multiple points. A handheld Niton XL2 reads the elemental composition of every item. Plating, low-purity solder joints and unusual alloys are flagged.
- Report and return. PDF report inside 24 to 48 hours. Item returned by Special Delivery the same day. Nothing kept, nothing held back.
Postal cover and safety
Your parcel is insured up to £2,500 via Royal Mail Special Delivery. For higher cover we can arrange a tracked courier before you post, with the cover level agreed in writing first.
Tracking begins the moment the parcel is scanned at the Post Office counter. You receive the tracking reference straight after we issue the label, and again the moment the parcel arrives with us.
What you get back, and when
Your item is returned by Royal Mail Special Delivery on the same working day the report is issued. Return postage and insurance are included in the testing fee — there is no separate return charge.
If, for any reason, an item cannot be tested (badly damaged surface, non-metallic core, equipment misalignment), we tell you straight, refund the testing fee, and return the item the same day.
Testing is testing
Plenty of gold buyers will offer a "free test" if you send your item in. That is a sales tool, not an independent service. This page is the other way round: you pay for the test and the report stands on its own. Whether you sell anything afterwards is a separate decision, and one we do not get involved in unless you ask.
The full reasoning is on the dedicated independence pledge page.
What this report is, and what it is not
The report identifies the elemental composition of an item to the accuracy of the analyser. It does not replace a UK hallmark, an Assay Office fire assay, or a written valuation from a qualified valuer for insurance reinstatement purposes. We say so in plain English on the front page of every report.
If a report leaves any doubt, we will tell you what the next step would be — typically a UK Assay Office fire assay (destructive but definitive) for high-value disputes, or a written insurance valuation from a qualified independent valuer for reinstatement cover.
Why this is a calmer way to sell
Three things make GoldPaid a steadier route than a counter sale. You see a measured valuation in writing, not a verbal estimate. You decide at home, with nobody waiting. And if you decline, the return is free, tracked and insured, so obtaining the valuation costs you nothing.
Common questions
Can the stone be graded while set in a piece of jewellery?
A full grading report needs the stone loose. The triage screen will say honestly whether your stone needs to come out of its setting first. If it does, we can recommend a trusted UK setter.
How long does it take?
5 to 7 working days from receipt. Faster if the triage has already happened by WhatsApp.
Is £85 the total price?
Yes — £85 covers the grading, the written report and Royal Mail Special Delivery return postage. Nothing is added at the end.
Will the report value the diamond in pounds?
A grading report grades the stone; it does not value it in pounds. Market value depends on grading plus supply and demand and is set by the trade. For a written reinstatement value, the report can be taken to a qualified independent valuer, or we can add the Insurance Valuation Add-on (+£25) for an insurer-friendly figure.