Understand what your diamond may be worth before deciding whether to sell it.
Sothis Diamonds offers private, no-obligation diamond valuations from Antwerp, Belgium. You can begin online with photographs and any available paperwork or arrange an appointment for an in-person examination.
Loose diamonds, diamond rings, inherited jewellery and other diamond pieces can be submitted for an initial review—even when the original grading report has been lost.
Free initial review · No obligation to sell · Private and transparent process
Quick Answer: Where Can I Get a Diamond Valued in Belgium?
You can request a free diamond valuation from Sothis Diamonds in Antwerp by submitting photographs, information about the item and any available GIA, IGI or HRD Antwerp report.
The initial review helps establish what you have and whether a physical inspection is needed. A final market valuation considers the diamond’s origin, carat weight, colour, clarity, cut, shape, proportions, condition, documentation and present buyer demand.
The valuation is free and does not require you to sell. However, it should be understood as a current market assessment—not an insurance replacement appraisal, formal legal valuation or guaranteed purchase price based only on photographs.
A Valuation Should Give You Clarity, Not Pressure
People seek diamond valuations for very different reasons. You may have inherited a ring and know almost nothing about it. You may be considering selling jewellery after a life change, or you may simply want to understand whether an old appraisal still reflects the present market.
Whatever the reason, the first conversation should be informative. You should be able to ask what has been examined, which details influence the value and whether more testing is required before making a decision.
A valuation does not have to become a sale. Its purpose is to give you a clearer understanding of the item and its potential position in today’s market.
What Does a Free Sothis Diamond Valuation Include?
The free valuation is intended to assess the diamond or jewellery for its potential current market value. The process may begin online, but the most dependable result normally follows physical verification.
Where sufficient information is available, the initial review may consider:
- Ob es sich um einen natürlichen oder im Labor gezüchteten Diamanten handelt
- Approximate or documented carat weight
- Diamond shape and measurements
- Colour, clarity and cut information
- Grading laboratory and report details
- Visible condition of the diamond and jewellery
- Precious metal and additional stones
- Current demand for that type of diamond
The valuation does not automatically include a newly issued laboratory report, a written insurance schedule or a formal document prepared for court, inheritance or taxation purposes. If you need the valuation for one of these purposes, explain this before the assessment begins.
Diamond Valuation, Grading Report and Insurance Appraisal: What Is the Difference?
These documents and services answer different questions.
| Service or Document | What It Tells You |
|---|---|
| Free market valuation | What the diamond or jewellery may realistically be worth in the current resale market |
| Diamond grading report | The diamond’s identity and quality characteristics, such as the 4Cs, measurements and treatments |
| Insurance appraisal | The estimated cost of replacing a comparable item through an appropriate retail market |
| Legal or estate valuation | A purpose-specific written valuation that may need to meet professional or legal requirements |
GIA explains that its grading reports provide technical information about a diamond’s quality and identifying characteristics but do not state a monetary appraisal value. A grading report can support a valuation, but it is not itself a valuation.
If your objective is to sell, the most relevant figure is usually the current resale value—not the original purchase price or insurance replacement amount.
What Types of Diamonds and Jewellery Can Be Valued?
Sothis Diamonds can begin an initial review of loose diamonds as well as diamonds mounted in jewellery. You should not remove a stone from its setting before submitting it.
Items may include:
- Lose natürliche Diamanten
- Diamond engagement and wedding rings
- Diamond earrings and pendants
- Diamond necklaces and tennis bracelets
- Inherited diamond jewellery
- Vintage and antique pieces
- Fancy-Colour-Diamanten
- Branded or designer jewellery
- Diamonds without their original reports
If you believe the diamond may be laboratory-grown, or you do not know its origin, mention this in the enquiry. Natural and laboratory-grown diamonds belong to different resale markets and should never be valued using the same pricing assumptions.
Not every submitted item will necessarily receive a purchase offer. The initial review helps determine whether Sothis can assess the item within its current buying criteria.
How the Free Diamond Valuation Process Works
1. Tell Us What You Have
Begin with a short description. If you know the diamond’s carat weight, shape or grading details, include them. If you do not, there is no need to guess.
Clear photographs of the complete item, side profile and underside can help the specialist understand what may need to be examined.
2. Submit Any Available Documentation
Upload the grading report, receipt or previous appraisal if available. A GIA, IGI or HRD Antwerp report can provide valuable information, but an older or undocumented diamond can still be submitted.
Report details should be checked against the issuing laboratory’s records whenever possible.
3. Receive an Initial Review
The submitted information is reviewed to determine whether a preliminary opinion can be provided and whether an in-person inspection or secure shipment is appropriate.
A photograph can show the type and general condition of jewellery, but it cannot reliably establish exact colour, clarity, origin or carat weight.
4. Arrange Inspection in Antwerp or Secure Shipping
You may be invited to an appointment at the Sothis Diamonds office in Antwerp. If you cannot visit, ask the team about the currently available insured shipping arrangements.
Do not send valuable jewellery through ordinary post without first receiving confirmed packaging, tracking and insurance instructions.
5. Receive the Market Valuation
After the item and its documentation have been examined, Sothis can explain the characteristics affecting its current market value.
If the item meets the buying criteria, you may also receive an offer. You remain free to consider or decline it.
What Determines the Value of a Diamond?
A diamond’s value cannot be established from carat weight alone. The 4Cs—carat, colour, clarity and cut—provide the recognised starting point, but a proper market assessment also considers shape, proportions, fluorescence, condition, origin, documentation and demand.
Carat Weight and Measurements
One carat equals 200 milligrams, but carat measures weight rather than visible size. Two diamonds with the same weight can have different diameters and face-up appearances because their proportions differ.
Prices also do not necessarily increase at a perfectly even rate. Larger diamonds are rarer, and stones near important weight thresholds may occupy different market categories.
Colour and Clarity
Within the standard D-to-Z colour range, differences in colour grade can influence rarity and demand. Clarity considers internal inclusions and external blemishes, but the grade alone does not tell the complete story.
An inclusion’s type, size, position and effect on appearance can matter. Two diamonds sharing the same clarity grade may not be equally attractive or equally easy to resell.
Cut and Proportions
Cut influences how effectively a diamond handles light. For round brilliant diamonds, the grading report may include an overall cut grade. Fancy shapes such as oval, cushion, pear and emerald cuts require additional attention to proportions, outline and visual appeal.
Shape and Market Demand
Round, oval, emerald, cushion and other shapes do not necessarily trade at the same price. A shape that is strongly demanded in a particular size and quality combination may be easier to place with a future buyer.
Natural or Laboratory-Grown Origin
Natural and laboratory-grown diamonds may look similar to an untrained observer, but their origin materially changes the market in which they are valued. If the origin is unknown, specialist testing may be required.
Grading Report and Condition
A recognised grading report can make the valuation more precise. However, the physical diamond should still be checked because a report does not prove that the stone remains undamaged or that the document belongs to the item being presented.
Illustrative Example: A Certified One-Carat Diamond Ring
Imagine a seller submits a ring containing a 1.01-carat round natural diamond. The GIA report describes it as G colour, VS2 clarity and Excellent cut. The seller also has the original receipt and an older insurance appraisal.
The grading report provides useful quality information, but neither the receipt nor the insurance value automatically establishes what the ring can be sold for today. The report should first be verified, and the physical diamond should be checked for condition and consistency with its documented measurements.
The setting, precious-metal content and any additional diamonds are then considered separately. The resulting market valuation may differ substantially from both the original retail price and the insurance replacement figure because each represents a different type of value.
This is an illustrative example, not a Sothis customer case study.
Can I Get a Free Diamond Valuation Without a Certificate?
Yes. Many inherited and older diamonds no longer have their original paperwork.
Begin with the information available and state clearly that the report is missing. Photographs may help identify the type of item and any visible hallmarks, but a physical inspection may be required before the diamond’s origin, weight and quality can be assessed properly.
Do not automatically pay for a new grading report before requesting an initial review. For some diamonds, updated laboratory documentation may improve marketability. For others, the expense and time may not change the likely selling outcome.
Sothis can first advise whether additional documentation appears useful.
Illustrative Scenario: An Inherited Ring with No Paperwork
Suppose you inherit an older ring that has remained in a jewellery box for decades. A family member believes it contains a valuable diamond, but there is no receipt, grading report or reliable record of where it was purchased.
The sensible first step is not to estimate its value from its apparent size. Instead, photograph the complete ring, its side profile and any visible hallmark. Explain what you know and what remains uncertain.
During inspection, the centre stone, smaller diamonds, setting and precious metal can be assessed. If further laboratory testing would be useful, this can be discussed before any additional expense is incurred.
The lack of paperwork does not prove that the ring is valuable, but it also does not mean it should be dismissed without examination.
This scenario is illustrative and should not be represented as an actual customer transaction.
Is an Online Diamond Valuation Accurate?
An online valuation is useful for beginning the process, especially when you have a verifiable grading report. It can help determine whether the item is suitable for further review and what information is still missing.
However, photographs cannot reliably show every inclusion, treatment, proportion or condition concern. Lighting, camera processing and the jewellery setting can also alter how colour and clarity appear.
For this reason, any figure provided before physical inspection should be described as preliminary. A final market valuation or purchase offer should follow verification of the diamond and its documentation.
Use the separate Diamond Valuation Calculator if you want to create an initial valuation profile from the details on your report.
Why Have Your Diamond Valued in Antwerp?
Antwerp’s association with diamond trading dates back centuries. Its diamond district remains a concentrated professional market for the inspection, sorting, grading and trading of diamonds.
For a private owner, Antwerp’s history does not guarantee that every diamond will receive a high valuation. What it provides is access to an established market where diamonds can be considered according to professional quality characteristics and present trading demand.
Sothis Diamonds is located at:
Hoveniersstraat 2, Bus 210
2018 Antwerp, Belgium
Arrange an appointment before travelling with valuable jewellery.
How to Prepare for Your Diamond Valuation
You do not need to polish or alter the jewellery before submitting it. Gentle removal of surface dust may help with photographs, but strong chemicals and improvised tools could damage the metal or loosen the setting.
Photograph the item against a plain background in indirect daylight. Include a complete front view, side profile, underside and any visible hallmarks or engravings. If a report is available, photograph the complete document clearly enough for its laboratory and report number to be read.
Bring or upload any relevant documents, including:
- Diamond grading report
- Original receipt, if available
- Previous appraisal
- Brand documentation or box
- Repair or alteration records
These documents provide context, but none should be treated automatically as proof of present resale value.
A Private, No-Obligation Assessment
A diamond can be financially valuable and personally sensitive at the same time. The reason for requesting a valuation may involve an inheritance, separation, financial decision or simply a piece that is no longer worn.
You should only have to provide the information required to understand the item and continue the process securely. A complete residential address should not be requested before an appointment or shipping arrangement makes it necessary.
After receiving the valuation, take the time you need to consider it. A no-obligation process means you should be able to decline the offer without being pressured to make an immediate decision.
Frequently Asked Questions
Is the diamond valuation really free?
The initial Sothis market valuation is free and does not create an obligation to sell. If optional laboratory testing, certification or another third-party service could involve a fee, it should be explained and approved before proceeding.
Will I receive the valuation immediately?
An initial response may be possible from photographs and documentation, but the time required depends on the item and the information available. A final valuation may require physical inspection and report verification.
Is the valuation a guaranteed purchase offer?
No. An online valuation is preliminary. If Sothis is interested in purchasing the item, a final offer can be confirmed after inspection and verification.
Can I value a diamond ring without removing the stone?
Yes. Submit the ring in its current condition. Do not attempt to remove the diamond yourself. The setting may limit certain measurements, but a professional can advise whether removal is necessary.
Can I get a diamond valued without knowing the 4Cs?
Yes. Submit photographs and select “unknown” for any details you do not have. Do not estimate colour or clarity from appearance alone.
Does a GIA, IGI or HRD report state the diamond’s value?
No. A grading report describes the diamond’s characteristics. The monetary value must be determined separately according to the diamond’s verified quality, condition and current market.
Is my old insurance appraisal still accurate?
It may still provide useful background information, but an insurance appraisal usually concerns replacement cost rather than present resale value. Market conditions and the condition of the jewellery may also have changed.
Can inherited jewellery be valued?
Yes. Inherited diamond rings, earrings, necklaces, bracelets and loose stones can be submitted even if their history or documentation is incomplete.
Can laboratory-grown diamonds be valued?
Laboratory-grown diamonds must be evaluated within their own resale market. State the origin if known. Sothis can confirm whether the item fits its current valuation and buying criteria.
Can fancy-coloured diamonds be valued online?
You can begin online, but fancy-coloured diamonds generally require individual review. Colour type, intensity, distribution, origin, treatments and documentation can all influence the assessment.
Can I visit Sothis Diamonds in Antwerp?
Yes, but arrange an appointment before travelling. This ensures the appropriate specialist is available and the item can be handled privately.
Do I have to sell after the valuation?
No. You can receive and consider the valuation without accepting an offer.
Request Your Free Diamond Valuation
You may have a detailed grading report, an old receipt or nothing more than the jewellery itself. Whatever information is available, you can use it to begin a private conversation about your diamond’s current market value.
Submit clear photographs and any available documentation. Sothis Diamonds will review the information and advise whether an Antwerp appointment or secure physical inspection is the appropriate next step.