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Art valuation — fast, explainable

Generate Market-Based Art Price Estimates — Instantly

Get a transparent, market-context valuation in minutes: conservative–market–aggressive price ranges, top comparables with sources and dates, condition- and provenance-aware adjustments, plus exportable reports for consignments and insurers.

Try batch estimatesLearn about valuation methods

Output formats

CSV, PDF valuation summary, JSON

Standardized exports for inventory workflows and insurer reviews

Valuation modes

Single-item, batch, channel-specific

Choose gallery, auction, or online marketplace perspectives

Explainability

Comparables + step-by-step adjustments

Each estimate includes top comparables, source citations, and discrete modifiers

Transparent inputs and reasoning

How market-based estimates are produced

Estimates combine multiple market signals and structured inputs so you can understand how a price was reached. The system cross-references auction house sale records, gallery and private sale catalogs, specialized marketplace listings, exhibition histories, condition notes and provenance registries. Each estimate returns a conservative–market–aggressive range plus the top comparables and a concise rationale explaining each adjustment.

  • Comparable sourcing: prioritized by artist, medium, size, sale date and geographic relevance
  • Condition adjustments: discrete modifiers applied for conservation needs or wear
  • Provenance-aware adjustments: documented exhibitions and notable ownership are surfaced and weighted
  • Channel-aware outputs: separate estimates for auction, gallery retail, and online marketplaces

Practical, exportable deliverables

What you get — outputs designed for sales and audits

Deliverables are tailored to professional workflows: single-item summaries, batch CSV exports, and one-page valuation audit reports formatted for insurers and consignment paperwork.

Single-item valuation

Conservative–market–aggressive price ranges, top 3 comparables with source and sale date, discrete line-item adjustments and final recommended listing price.

  • Human-readable summary suitable for consignment agreements
  • Recommended listing channel and negotiation buffer

Batch inventory estimates

Upload CSV and receive structured estimates for entire collections or estates, with export-ready fields for catalogs and sales pipelines.

  • Includes comparable IDs and seller-recommended prices
  • Works at scale for galleries and online marketplaces

Valuation audit summary (insurer-ready)

One-page report: item description, provenance snapshot, condition summary, primary comparables with sources, final price range, and key risks.

  • Designed to support insurer reviews and audits
  • Includes traceable source citations

Reproducible prompts for consistent results

Prompt templates you can use

Use these practical prompt clusters to get predictable output from the valuation engine. Each template maps to a common workflow and returns structured, exportable fields.

  • Single-item estimate (structured): Provide artist, title, year, medium, dimensions, condition (describe), provenance summary, preferred sale channel. Return conservative–market–aggressive ranges, top 3 comparables with source and sale date, discrete valuation adjustments, and recommended listing price.
  • Emerging-artist guideline: For an emerging artist with limited record, create a recommended retail price range, justify comparables, note confidence level and missing data.
  • Batch CSV estimate: Accept CSV with item_id, artist, title, year, medium, height_cm, width_cm, condition_note, provenance_flag. Output CSV with estimates, top comparable IDs and seller-recommended price.

Tailored for art-market roles

Who benefits

The valuation outputs fit into sales, consignment, insurance and acquisition processes. Examples describe common use cases and the recommended outputs.

  • Gallery owners & sales directors: fast listing prices and listing-channel advice.
  • Auction and consignment teams: reserve recommendations and negotiation buffers.
  • Independent appraisers: provenance-aware adjustments and audit-ready summaries.
  • Insurance underwriters: concise one-page valuation summaries with cited comparables.
  • Artists & managers: retail pricing guidance and confidence notes for emerging names.

Where valuations pull evidence from

Sources and currency

Estimates are built from a mix of historical and current market records. For best results, combine structured data (sale dates, prices, seller type) with provenance documents and condition notes.

  • Historical auction house sale records and sales indices
  • Gallery and private sale catalogs and listings
  • Specialized online marketplaces and local/regional listings
  • Exhibition catalogs, artist CVs and provenance registries

FAQ

How accurate are instant price estimates and how should I use them?

Estimates provide a market-informed starting point and explain the comparables and adjustments used. Treat conservative–market–aggressive ranges as decision support: use conservative figures for insurance replacement or reserve-setting and market/aggressive ranges for listing and negotiation strategies. Always validate final prices with visual condition checks and any new sale intelligence.

What inputs produce the best estimates (images, condition notes, provenance)?

The most useful inputs are a clear condition description (or a conservation report), documented provenance or exhibition history, accurate dimensions and medium, and recent sale records for close comparables. Images help flag condition issues and confirm medium/technique but are secondary to structured provenance and condition notes for price modifiers.

How does provenance or exhibition history affect valuation?

Documented provenance and notable exhibition history are treated as positive valuation modifiers. Museum exhibitions, notable previous owners, or published provenance can increase confidence and justify upward adjustments; the system lists each provenance element and explains its impact so you can see why a modifier was applied.

Can the system price emerging or privately sold artists with limited public records?

Yes — the valuation engine uses local gallery sales, similar-medium comparables and exhibition records to create a reasoned retail range for emerging artists. These estimates include an explicit confidence note and list the missing data that would improve accuracy (for example, auction results or verified private sales).

How should I interpret conservative vs market vs aggressive price ranges?

Conservative is a lower-bound estimate suitable for insurance replacement or quick-sale scenarios. Market is the expected achievable price in the current channels given comparable sales. Aggressive reflects top-of-market outcomes — useful for aspirational listing strategies or targeted collectors. Each estimate includes the comparables and assumptions behind the band.

Can I run estimates for an entire inventory or estate in one go?

Yes. Upload a CSV with item identifiers and key fields (artist, title, year, medium, dimensions, condition, provenance flag). The batch output returns structured estimates for each row plus comparable IDs and a suggested seller price column for catalog imports.

What data sources feed the estimates and how current are they?

Estimates synthesize historical auction records, gallery and private sale catalogs, marketplace listings, exhibition catalogs and provenance registries. Currency depends on available marketplace feeds; always review the comparables' sale dates included with each estimate to assess recency.

How do you handle condition uncertainty or conflicting provenance claims?

When inputs are uncertain or conflicting, the report flags those issues and reduces confidence accordingly. Condition uncertainty leads to wider ranges and explicit condition modifiers; conflicting provenance entries are surfaced with source notes so a human reviewer can resolve discrepancies before finalizing a valuation.

Is there an audit trail or exportable report for insurers and consignors?

Yes. Each estimate can generate a one-page valuation audit summary that includes item description, provenance snapshot, condition summary, primary comparables with sources and dates, the final price range, and key risks or uncertainties suitable for insurer review or consignment files.

How do I adjust valuation templates for retail gallery vs auction sale strategies?

Valuation templates let you set assumptions and markups for different sale channels. For galleries you can apply retail markups and suggested negotiation buffers; for auctions you can generate recommended reserves and tighter conservative ranges. Each template documents the assumptions used so stakeholders can agree to the rationale.

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