AncientAntiques.co
Collector due diligence

Valuing Ancient Objects

Value depends on lawful title, documented provenance, authenticity, completeness, condition, rarity, scholarship, publication, and market comparables.

Value depends on lawful title, documented provenance, authenticity, completeness, condition, rarity, scholarship, publication, and market comparables.

Evidence-first sequence
  1. Photograph the whole object, front, back, base, interior, edges, breaks, marks, mounts, labels, and associated documents.
  2. Record dimensions, weight, material, construction, surface, condition, repairs, seller, location, and every provenance statement exactly.
  3. Separate observed facts from attribution, family history, dealer language, translation, and collector labels.
  4. Compare museum objects, excavation reports, typologies, scientific evidence, old catalogs, and lawful collection records.
  5. State identity, date, origin, authenticity, and legal status only as strongly as the evidence supports.

Historical frame

Value depends on lawful title, documented provenance, authenticity, completeness, condition, rarity, scholarship, publication, and market comparables. This guide is a research framework, not legal advice or a substitute for a qualified specialist in the relevant country and object class.

Identification evidence

Keep dated screenshots, emails, invoices, photographs, reports, database-search results, permit copies, customs entries, return terms, and the exact listing description. Preservation of the decision record is part of due diligence.

Physical recordMeasurements, weight, material, manufacture, marks, surface, breaks, joins, fills, coatings, mounts, and active deterioration.
Documentary recordInvoices, collection names, dates, addresses, export papers, customs records, publications, photographs, labels, and archive references.
Comparative recordMuseum objects, excavation reports, typologies, scholarly catalogs, conservation studies, scientific testing, and matched completed sales.

Authenticity traps

Do not rely on verbal assurances, undated photocopies, generic certificates, cropped documents, seller-created biographies, or a single database search. Rules and databases change, and absence from a list does not prove lawful title.

Provenance is not optional: Ask for the ownership chain, invoices, export basis, import history, prior publications, restoration record, and exact seller representations. “Old collection,” “estate find,” and “from Europe” are not independently testable provenance.

Condition and preservation

Avoid aggressive cleaning, oil, acid, wire brushing, household polish, soaking, and adhesive repair. Isolate unstable corrosion, flaking surfaces, salts, active mold, and fragile organic materials until a qualified conservator can advise.

Value and market research

Responsible value research begins only after lawful title, attribution, authenticity, completeness, restoration, condition, provenance, publication history, and comparable sales are understood. A legally risky object may be unsalable regardless of appearance.

Responsible language: Prefer “attributed to,” “possibly,” “reported as,” “collection history states,” “replica,” “composite,” or “export status unverified” when certainty is incomplete.

Compare documented collector listings

Use listings to study measurements, material, form, restoration, documentation, seller language, and market supply. Do not treat an asking price or a certificate alone as proof.

Compare documented collector listings

A price estimate begins with what the object actually is

An attractive listing photo cannot resolve attribution, authenticity, restoration, lawful title, scarcity or an uncertain export record.

  1. Confirm identification: Record dimensions, material, manufacture, attribution confidence, inscriptions, repairs and period evidence.
  2. Separate comparisons: Comparable sales should match medium, documented origin, condition and completeness, not just a similar-looking figure or vessel.
  3. Account for legal liquidity: An object with unresolved title or cultural-property concerns may not be lawful to transfer, even if similar items have sold.

Document the evidence before a transaction

Do not use an eBay asking price or an undocumented “COA” as proof of a lawful or fair valuation.

This is an evidence-gathering checklist, not legal clearance, authentication, or an appraisal. Laws and import restrictions depend on object, origin, destination, and documented history.