KNOWLEDGE BASE – DETERMINING THE VALUE OF ANTIQUES
Market logic, landmarks & influencing factors
Determining the value of antiques is a combination of knowledge of the material, provenance, rarity, market demand, and the object's condition. Many people base their decision on age ("the older, the more valuable"), but that's just one of many factors.
This guide provides an overview of the key aspects that influence the value of antique objects — practical, clear, and applicable to a wide range of collecting areas.
1. Age is a factor, but not the most important
Although older objects are technically scarcer, age does not automatically determine value.
Other factors often weigh more heavily:
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quality of the material
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rare edition
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completeness
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decoration and style
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condition and originality
A 19th-century pot may be worth less than a 1950s design object — it all depends on demand and rarity.
2. Condition is crucial
Damage that reduces value
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chips and cracks in ceramics
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dents or rust on metal objects
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fractures or loose parts
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overpainting or poorly executed restorations
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moisture stains in books and paper
Damage that is sometimes acceptable
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light wear of patina
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traces of use in logical places
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crackle in glaze
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dull discoloration in old metal
Authentic patina can actually increase value.
3. Rarity
Rarity plays one of the biggest roles in determining value.
Became rare due to:
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low original edition
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early termination of production
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regional production (e.g. Westerwald variants)
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unusual shape or function
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misprints or deviations
An object may be younger, but if it is rare and sought after , its value increases.
4. Origin & Marks
Origin increases value when:
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the maker is known or documented
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there are markings present
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there is information about origin (provenance)
Examples:
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Meissen porcelain → sword mark
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Bavaria porcelain → crown marks
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Delft → tin glaze and signature
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Westerwald → cobalt blue decoration + potter's stamps
5. Demand & Market Trends
Value is ultimately determined by what people want to buy.
That changes due to:
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living trends
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vintage hypes
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rediscovery of certain styles
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film/series influences (e.g. Bridgerton → neo-style more popular; Peaky Blinders → industrial antique)
The higher the demand, the higher the market price.
6. Decorative value
Some objects are valuable because they are attractive:
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beautiful shape
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strong color
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graphic design
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sculptural appearance
With curiosities, appearance is often more important than age.
7. Complete sets are more valuable
Examples:
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tableware
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book series
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pairs of candlesticks
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matching sets of pots
A single pot can be worth €20; a complete set €150.
8. Original parts are important
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original lids
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original hinges
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original paint
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original pedestals
Replacements reduce value.
9. Professional restoration can increase value (but not always)
An invisible restoration can maintain or even increase value.
A visible, amateurish repair always reduces the value.
10. How do you determine a realistic value yourself?
Step 1 — Find similar items
NB:
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stands
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size
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used materials
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style
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brand
Step 2 — Check which items actually sell
Marktplaats and eBay prices are only reliable when you look at items sold , not what people are asking for.
Step 3 — Assess condition honestly
A light chip → 10–30% less
A crack → 30–70% less
Restoration → variable
Step 4 — Consider market trends
Some categories fluctuate greatly.
Why Valuation is Important
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better buying and selling
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prevent overpayment
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insight into rarity
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better management of collection and inventory
View more antiques
→ Category Antiques & Curiosities
→ Category Ceramics
→ Category Porcelain