Sell Diamond Jewellery in Belgium

What Diamond Jewellery Can Be Submitted?

Sothis Diamonds can initially review individual pieces, matching sets and collections containing several types of diamond jewellery.

Potential submissions include:

• Solitaire, three-stone, cluster and multi-stone diamond rings
• Diamond engagement rings and wedding rings
• Eternity, half-eternity and anniversary bands
• Diamond stud earrings
• Diamond hoop, drop and cluster earrings
• Single diamond earrings when the matching earring has been lost
• Diamond solitaire pendants
• Diamond necklaces, station necklaces and rivière necklaces
• Diamond tennis bracelets and line bracelets
• Diamond bangles and cuff bracelets
• Antique and vintage diamond jewellery
• Signed or designer diamond jewellery
• Inherited and estate jewellery
• Broken jewellery and pieces with missing stones
• Jewellery containing natural and coloured diamonds
• Laboratory-grown diamond jewellery
• Matching jewellery suites
• Mixed collections containing rings, earrings, necklaces and bracelets

Submission does not guarantee that every item will qualify for an offer. Very small diamonds, simulants, heavily damaged items and some laboratory-grown jewellery may fall outside current buying criteria.

If you do not know whether the stones are diamonds, submit the jewellery as “unknown.” Do not state that a stone is natural merely because it is old, expensive or inherited.

How Selling Diamond Jewellery Works

1. Submit Photographs of the Complete Piece

Start with clear photographs taken in indirect daylight against a plain background.

Include the front, back and side of each item. Photograph hallmarks, engravings, clasps, earring posts, ring interiors and any visible brand signature. If there is damage or a missing stone, include it rather than attempting to conceal it.

For several pieces, photograph each item separately and then include one group image showing the complete collection.

2. Upload Any Available Documents

A grading report can provide useful technical information, but it is not required to begin.

Upload any:

• GIA, IGI or HRD Antwerp reports
• Purchase receipts
• Insurance appraisals
• Previous jewellery valuations
• Repair or resizing records
• Branded authenticity cards
• Original-box information
• Auction or inheritance records
• Photographs of lost or damaged paperwork

A receipt or insurance appraisal should not be treated as a guaranteed selling price. It provides background, while the offer must reflect the verified item and present resale market.

3. Receive an Initial Review

The photographs and information are used to determine whether the jewellery appears suitable for further assessment.

Any figure provided before physical inspection should be described as a preliminary indication. It may rely on assumptions that still need to be confirmed, including the stones’ identity, origin, weight, quality and condition.

4. Arrange Physical Verification

A final offer requires physical inspection.

Sellers in Belgium can arrange a private appointment in Antwerp. Sellers elsewhere in Europe can ask whether an insured shipping or collection method is available from their country.

Do not dispatch valuable jewellery until the carrier, insurance limit, declared value, packaging requirements, inspection period and return process have been confirmed in writing.

5. Assess the Complete Jewellery and Its Components

The specialist examines whether the piece has stronger commercial potential as complete jewellery or through the combined value of its diamonds, precious metal and other components.

A desirable branded, antique or well-made piece should not automatically be valued only as scrap metal and loose stones. Equally, a damaged or outdated mounting may contribute less than the diamonds it contains.

6. Receive the Final Offer

After the item has been verified, Sothis Diamonds can prepare a market-based offer.

The offer should explain what is included, whether any authorised expenses will be deducted, how long it remains valid, the payment method and what happens if you decline.

Receiving an offer does not oblige you to sell.

How Is Diamond Jewellery Valued?

Diamond jewellery does not have one fixed value based solely on its original purchase price or total carat weight. Several parts of the item must be considered together.

The Centre Diamond

When a ring, pendant or another item has a principal diamond, that stone may represent a substantial part of the value.

Its assessment can include:

• Natuurlijke of in het laboratorium gecreëerde oorsprong
• Vorm en slijpstijl
• Carat weight or estimated mounted weight
• Kleur
• Duidelijkheid
• Cut and proportions
• Fluorescentie
• Behandelingen
• Of de diamant natuurlijk is of in een laboratorium is geproduceerd
• Grading report
• Present market demand

When the diamond remains mounted, some characteristics may initially be expressed as estimates or ranges. Professional removal should only be considered if greater precision is commercially necessary.

Smaller Diamonds and Total Diamond Weight

Smaller diamonds can contribute collectively to a piece, particularly in tennis bracelets, rivière necklaces, eternity rings, hoops and pavé designs.

Their value depends on more than the number of stones. The assessment may consider their estimated total weight, natural or laboratory-grown origin, matching, colour, clarity, cutting, condition and the labour required to remove or reuse them.

A large stated total carat weight spread across many small stones should not be assumed to have the same market value as one diamond of the same total weight.

Precious Metal

Gold and platinum can retain recoverable material value even when the jewellery is damaged.

The assessment can consider:

• Metal type
• Purity
• Hallmarks
• Total weight
• Non-metal components
• Solder, repairs or mixed metals
• Current recoverable metal value

The complete jewellery weight is not the same as its pure precious-metal weight. Diamonds, clasps, springs, non-precious components and impurities may need to be excluded.

Brand, Maker and Provenance

Recognised jewellery houses, distinctive makers and historically important designs can sometimes achieve more as complete pieces than as separated materials.

Original boxes, receipts, serial numbers, signatures, reference numbers, service records and authenticity documents can help establish identity and provenance.

A name appearing on a box does not prove the jewellery inside belongs to that brand. Signatures and construction details must still be examined.

Craftsmanship and Design

Handmade construction, complex stone setting, matching suites, unusual period design and high-quality finishing may contribute to resale potential.

However, craftsmanship cost at retail is not automatically recoverable in the secondary market. The piece must also have demand in its current form.

Age and Period

Antique and vintage jewellery may require a different assessment from modern mass-produced jewellery.

Old mine, old European and rose-cut diamonds should not be judged only by modern round-brilliant standards. The setting, construction method, period, condition and completeness can all affect how the jewellery should be marketed.

Age alone does not guarantee rarity or value.

Condition and Repair Requirements

Loose stones, damaged prongs, broken clasps, stretched links, worn galleries, thinning metal and missing diamonds can reduce marketability or create repair costs.

Some signs of age are acceptable in antique jewellery, while structural damage can make the item unsafe to wear. Do not repair or polish the jewellery before review unless the likely benefit has been explained.

Current Resale Demand

The final assessment considers what buyers currently seek in the secondary market.

A technically valuable item may take longer to sell if its size, design or diamond combination has limited demand. Conversely, a well-preserved, wearable and recognisable design may attract interest beyond its raw components.

Sell a Diamond Ring

Diamond rings can include solitaire rings, three-stone rings, halo rings, eternity bands, cocktail rings and diamond-set dress rings.

The centre diamond, smaller stones, precious metal, setting, craftsmanship and complete design should all be examined. A ring may also carry additional value when it is signed, antique, accompanied by its original documentation or part of a matching set.

Do not remove the centre diamond before submitting the ring. The mounting can protect the stone, preserve provenance and provide information about the item’s original construction.

If your item is specifically a diamond ring, use the dedicated Sell a Diamond Ring page for more detailed guidance about ring settings, resizing, centre-stone removal and complete-ring valuation.

Sell Diamond Earrings

Diamond stud, hoop, drop and cluster earrings can be submitted as matching pairs or as individual earrings.

For a pair, the assessment considers how well the diamonds match in size, shape, colour, clarity and appearance. The settings, backs, posts, hinges and safety mechanisms should also be inspected.

Submit all original parts, including:

• Butterfly or screw backs
• Detachable drops
• Jackets
• Connecting chains
• Original branded box
• Report cards for either earring
• Replacement or repair records

A single diamond earring may still contain a valuable diamond and precious metal. However, it may be less marketable as jewellery if a suitable match cannot be found.

Do not separate matching earrings or remove their stones before review.

Sell a Diamond Necklace or Pendant

Diamond necklaces range from simple solitaire pendants to station necklaces and high-total-carat rivière designs.

The valuation should consider the centre stone or complete sequence of diamonds, chain, metal purity, clasp, flexibility, workmanship and overall condition.

For a pendant, confirm whether the chain is original or was purchased separately. A valuable centre diamond may be the main source of value, while a signed pendant and original chain may be more desirable together.

For a diamond necklace, inspect:

• Necklace length
• Number and arrangement of diamonds
• Estimated total diamond weight
• Matching across the necklace
• Link flexibility
• Clasp and safety mechanism
• Areas of repair or stretching
• Missing or replaced stones
• Brand signatures or reference numbers

Do not cut the chain, remove the pendant or detach stones merely to make the item easier to photograph.

Sell a Diamond Bracelet

Diamond tennis bracelets, line bracelets, bangles and other diamond-set bracelets can contain many individually small stones whose combined quality and matching contribute to the complete item.

The assessment can include:

• Estimated total diamond weight
• Number and size of diamonds
• Natuurlijke of in het laboratorium gecreëerde oorsprong
• Diamond matching
• Bracelet length and width
• Precious-metal purity
• Link condition and flexibility
• Clasp security
• Safety catches
• Missing or replacement stones
• Brand and workmanship

A stretched or broken tennis bracelet may still retain value, but its repair cost and the security of its settings must be considered.

Keep loose links, detached clasps and any fallen stones in a separate secure container and submit them with the bracelet.

Can I Sell a Diamond Pendant Without Its Chain?

Yes. A diamond pendant can be assessed without a chain.

The diamond, pendant setting, precious metal, brand and condition can still contribute value. If the original chain is found later, mention it before accepting an offer because completeness may improve the piece’s resale potential.

Do not attach an unrelated chain merely to make the pendant appear complete.

Can I Sell One Diamond Earring?

Potentially. A single earring may still have value in its diamond and precious metal.

Its resale potential depends on whether it can be sold individually, matched with another stone or assessed for its components. A signed or distinctive single earring may have different potential from an ordinary mass-produced stud.

Submit the remaining back, box, paperwork and any photograph of the original pair.

Is Complete Jewellery Worth More Than Its Diamonds and Metal?

Sometimes—but not always.

A signed, antique, period, unusual or exceptionally well-made piece may have resale value beyond its separate materials. A matching pair of earrings or complete necklace can also be more attractive than its stones considered individually.

Other jewellery may be valued primarily through the diamonds and recoverable metal because the design has limited demand, requires major repair or cannot be resold safely in its current condition.

The correct approach is to assess the complete piece before deciding whether separation is commercially justified.

Sellers should be cautious when a buyer immediately quotes only a scrap-metal figure without considering the diamonds, brand, craftsmanship or complete design.

Do Small Diamonds Have Resale Value?

Small diamonds can contribute value, particularly when they are well matched and remain securely set in a desirable piece.

However, removing, sorting, testing and reusing many very small diamonds involves labour and risk. Their collective selling value may therefore be lower than sellers expect from the original retail price or stated total carat weight.

In some jewellery, the smaller diamonds improve the value of the complete item. In other pieces, only the larger stones and recoverable precious metal may make a meaningful contribution.

Do not attempt to remove pavé, channel-set or melee diamonds yourself.

Should I Remove the Diamonds Before Selling the Jewellery?

No. Submit the complete piece first.

Removing stones prematurely can:

• Chip a diamond
• Damage the girdle
• Bend or break the setting
• Cause small stones to be lost
• Destroy a matching layout
• Reduce branded or antique value
• Make provenance more difficult to establish
• Create unnecessary removal and resetting expenses

GIA’s current jewellery-report service demonstrates that finished jewellery can still be examined as a complete item. Its report can describe diamond counts, shapes, estimated weights, colour and clarity ranges, metal testing, markings and total item weight, although grading remains limited by the mounting. GIA jewellery-report information

If professional removal is required, the commercial reason, cost, insurance responsibility and effect on the setting should be agreed with the seller first.

Can I Sell Diamond Jewellery Without a Certificate?

Yes. A grading report is helpful but not required for the initial review.

The diamonds must then be identified and assessed using the information that can be verified from the item itself. Further testing may be needed to establish whether the stones are natural, laboratory-grown or simulants.

For larger or commercially important diamonds, the specialist may discuss whether professional removal and independent laboratory grading would improve the net selling result. A new report is not automatically worthwhile for every piece.

If your central concern is missing documentation, use the dedicated Sell a Diamond Without a Certificate page.

Can I Sell Broken or Damaged Diamond Jewellery?

Potentially. Broken jewellery can still contain valuable diamonds and precious metal.

Examples include:

• Rings with bent or broken shanks
• Earrings with missing backs or damaged posts
• Necklaces with broken chains
• Tennis bracelets with stretched or separated links
• Jewellery with missing small diamonds
• Settings with loose prongs
• Pieces damaged by fire or impact
• Previously altered or poorly repaired jewellery

Keep every loose diamond, broken component, clasp and detached link. Place small parts in separate, sealed containers so they are not lost.

Do not glue stones back into the jewellery or use household tools to straighten the metal. Improvised repairs can damage the item and interfere with professional testing.

Can I Sell Inherited Diamond Jewellery?

Yes. Inherited jewellery often arrives with limited information, old valuations or no grading reports.

Preserve any boxes, receipts, handwritten notes, photographs, insurance schedules and repair records found with the jewellery. These may help identify the maker, period, original matching set or grading-report number.

The sentimental or insurance value of inherited jewellery should not be confused with its present selling value. Nevertheless, the absence of modern paperwork does not mean the item has no value.

If several heirs have an interest in the jewellery, establish who has legal authority to approve the sale before transferring the item.

Can I Sell Antique or Vintage Diamond Jewellery?

Potentially. Antique and vintage jewellery should be assessed in its historical and design context before stones are removed.

Older pieces may contain:

• Old mine-cut diamonds
• Old European-cut diamonds
• Rose-cut diamonds
• Foil-backed stones
• Mixed diamond cuts
• Hand-cut or irregular small diamonds
• Silver-topped gold construction
• Historic repair work
• Delicate closed-back settings

The jewellery’s period, construction, design, completeness and condition may matter alongside its stones and metal.

Do not clean antique jewellery aggressively, open closed-back settings or remove old-cut diamonds without specialist advice.

Can I Sell Signed or Designer Diamond Jewellery?

Yes. Submit the complete piece with every available accessory and document.

Useful supporting material can include:

• Original box
• Purchase invoice
• Authenticity card
• Serial or reference number
• Service documents
• Original spare links
• Matching components
• Brand correspondence
• Previous auction documentation

The signature, serial number, construction and provenance must still be verified. An original box or receipt does not by itself authenticate the jewellery.

If the piece is genuine and marketable, keeping it complete may be significantly more appropriate than valuing it only for diamonds and metal.

Can I Sell Laboratory-Grown Diamond Jewellery?

You can submit laboratory-grown diamond jewellery for review, but it must be considered within the laboratory-grown resale market and Sothis Diamonds’ current buying criteria.

Natural and laboratory-grown diamonds can appear visually similar. Specialist screening may be needed when the origin is unknown.

IGI explains that finished laboratory-grown diamond jewellery can be examined without disassembly, with stone characteristics reported to the extent the mounting permits. IGI laboratory-grown diamond report information

Do not describe a diamond as natural simply because it was expensive, inherited or accompanied by an old receipt.

Can I Sell a Collection of Diamond Jewellery?

Yes. A collection can contain multiple rings, earrings, necklaces, pendants and bracelets.

Photograph and list each piece separately. Assign a simple reference such as Ring 1, Earrings 1 or Bracelet 2, and use the same reference for its photographs and documents.

Do not place all the jewellery in one bag where pieces can scratch or become tangled. Keep necklaces fastened, separate earrings into pairs and place loose components in labelled containers.

A collection may contain pieces requiring different valuation approaches. A signed necklace may be assessed as complete jewellery, while a broken unbranded ring may be considered through its diamonds and metal.

Sellers should receive a clear itemised record showing which pieces are included in the final offer.

Illustrative Example: A Mixed Inherited Jewellery Collection

Imagine that a seller inherits a jewellery box containing a solitaire ring, a pair of diamond studs, a broken tennis bracelet and a diamond pendant.

Only the solitaire has a grading report. The seller submits separate photographs of each item, the report and all visible hallmarks.

During physical inspection, the solitaire diamond is matched to its report and the setting is assessed. The earrings are examined for diamond matching and tested as a pair. The bracelet’s diamonds, metal and repair requirements are considered, while the pendant is reviewed as a complete wearable item.

The specialist does not assume that every item should follow the same valuation method. Each piece is assessed according to its verified diamonds, metal, condition, completeness and current demand.

The seller then receives an itemised offer and remains free to accept or decline it.

This is an illustrative example and should not be presented as an actual Sothis Diamonds transaction.

How to Compare Offers for Diamond Jewellery

Do not compare only the largest headline amount. Confirm what each buyer has assessed and whether the figure is preliminary or final.

Ask:

• Has the complete jewellery item been physically examined?
• Have the diamonds been tested?
• Has natural or laboratory-grown origin been established?
• Are mounted grades estimates or confirmed laboratory results?
• Are smaller diamonds included in the offer?
• Is the precious metal included?
• Has any brand or antique value been considered?
• Is the jewellery being valued complete or only for components?
• Will removal, repair, grading or shipping expenses be deducted?
• How long does the offer remain valid?
• What happens if you decline?
• Who pays for insured return delivery?
• When and how will payment be completed?
• Will you receive an itemised transaction document?

An offer based on verified characteristics and clearly explained deductions may be more dependable than a high online estimate based only on photographs or the original retail price.

Why Sell Diamond Jewellery in Antwerp?

Antwerp provides an established professional environment for polished diamonds and jewellery assessment.

The Antwerp World Diamond Centre reported that combined imports and exports across Antwerp’s diamond industry reached USD 19.07 billion in 2025. Polished diamonds represented 65.6% of that trade value. AWDC 2025 diamond-industry figures

These figures do not guarantee a particular price for an individual piece of jewellery. They do demonstrate the scale of Antwerp’s continuing role in the international diamond market.

Sothis Diamonds is located at:

Hoveniersstraat 2, Bus 210 2018 Antwerp, Belgium

Arrange a private appointment before travelling with valuable jewellery.

How to Prepare Diamond Jewellery for Review

Do not have the diamonds removed, the metal scrapped or the jewellery repaired before the initial assessment.

Gently remove surface dust using a clean, soft cloth. Avoid bleach, abrasives, household chemicals, ultrasonic cleaning and aggressive polishing, particularly when the jewellery is antique, damaged or contains delicate settings.

Photograph each item in indirect daylight against a plain background.

For rings, include:

• Face-up view
• Both side profiles
• Underside of the setting
• Interior of the band
• Hallmarks and engravings

For earrings, include:

• Front and back
• Side view
• Posts, hinges and clasps
• All earring backs
• Both earrings together

For necklaces and bracelets, include:

• Complete laid-flat view
• Clasp and safety mechanism
• Hallmarks
• Flexible links
• Damaged or missing-stone areas
• Pendant front and back

Include all reports, receipts, appraisals, boxes and spare components.

A Private and Secure Jewellery-Selling Process

Photographs, reports, appraisals and personal information should only be accessible to authorised reviewers.

Before sending jewellery, you should receive written information covering the shipping method, insurance, declared value, inspection period, return process and responsibility for any authorised third-party expenses.

When several items are submitted, each piece should be recorded on arrival. The seller should be able to identify exactly which items are included in an offer or return shipment.

Receiving an initial review or final offer does not oblige you to sell.

Frequently Asked Questions

What types of diamond jewellery can I sell?

You can submit diamond rings, earrings, necklaces, pendants, bracelets, bangles, brooches and matching jewellery sets. Every item remains subject to verification and current buying criteria.

Is the initial jewellery review free?

Yes. The initial review and market-based offer should be free and carry no obligation to sell. Any optional shipping, grading, removal or third-party expense must be explained separately.

Is an online offer final?

An online figure is normally preliminary. A final offer can be confirmed after the diamonds, precious metal, condition, documentation and complete jewellery have been physically verified.

Do I need a diamond certificate?

No. You can begin with photographs and the information currently available. Additional testing or grading may be discussed if it is commercially justified.

Should I remove the diamonds from the jewellery?

No. Submit the complete piece first. Premature removal can damage the diamonds or eliminate value associated with the setting, craftsmanship, brand or period.

Is my jewellery valued only for scrap?

Not automatically. The complete design, diamonds, precious metal, brand, age, craftsmanship, condition and resale potential should all be considered before deciding on an appropriate valuation approach.

Do small diamonds have value?

They can contribute value collectively, especially when they are matched and remain in desirable jewellery. However, the labour involved in removing and sorting very small diamonds can affect their net resale value.

Can I sell a diamond ring?

Yes. Submit the complete ring, including any grading report, receipt, box and documentation. A dedicated ring-selling page provides more detailed guidance.

Can I sell diamond earrings?

Yes. Matching pairs, single earrings, studs, hoops, drops and cluster earrings can be submitted for review.

Can I sell one diamond earring?

Potentially. Its diamond and precious metal may retain value even when the matching earring has been lost.

Can I sell a diamond necklace?

Yes. Submit photographs of the complete necklace, clasp, hallmarks, links and diamonds. Include any pendant, detachable components and documentation.

Can I sell a diamond pendant without its chain?

Yes. The diamond, pendant setting, metal, brand and condition can still be assessed without the chain.

Can I sell a diamond tennis bracelet?

Yes. The diamonds, matching, total estimated weight, metal, links, clasp and overall condition can be assessed.

Can I sell a broken diamond bracelet?

Potentially. Keep all detached links, clasps and loose stones and submit them with the bracelet.

Can I sell inherited diamond jewellery?

Yes. Preserve any old boxes, receipts, valuations, photographs and repair records and confirm that you have legal authority to sell the property.

Can I sell antique diamond jewellery?

Potentially. Antique pieces should be assessed intact because period design, construction and old-cut diamonds may add value beyond the recoverable materials.

Can I sell designer jewellery without its original box?

Yes. The item can still be submitted, although original boxes, receipts and authenticity documents may help establish provenance and completeness.

Can I sell jewellery with missing diamonds?

Potentially. The remaining diamonds, metal and complete item can still retain value, but repair requirements and condition will affect the assessment.

Can I sell laboratory-grown diamond jewellery?

You can submit it for review. Laboratory-grown diamonds are assessed within their own resale market and Sothis Diamonds’ current buying criteria.

Does an insurance valuation show what I will receive?

No. An insurance valuation commonly estimates retail replacement cost. A resale offer reflects the verified jewellery and present secondary-market demand.

Can I submit several jewellery pieces together?

Yes. Photograph and label each item separately so its images, documents and eventual offer can be matched correctly.

Can I sell jewellery from outside Belgium?

Potentially. Begin with an online submission. Sothis Diamonds can then advise whether an Antwerp appointment or an agreed insured shipping process is available from your country.

How quickly will I receive an offer?

The timeframe depends on the number of items, available information and whether physical inspection, testing or additional grading is required. The expected process should be explained after the initial review.

How will payment be made?

The payment method, transaction documentation and expected payment timeframe should be confirmed before ownership is transferred.

Can I visit Sothis Diamonds in Antwerp?

Yes. Arrange a private appointment in advance so the appropriate specialist is available.

Receive a Free Offer for Your Diamond Jewellery

Your jewellery may be a single ring, a matching pair of earrings, a diamond necklace, a tennis bracelet or an inherited collection containing several pieces.

Submit clear photographs of each item and include any reports, receipts, valuations or branded documents still available. Certificates are helpful but not required to begin.

If the jewellery meets the current buying criteria, Sothis Diamonds can advise whether a private Antwerp appointment or an agreed insured shipping process is appropriate.

After physical verification, you can receive a market-based offer that you remain free to accept or decline.