Value guide

What Determines an Antique’s Value?

Age alone does not make an object valuable. Market value is the result of several connected factors—including what the object is, who made it, how rare it is, its condition, its history, and what buyers are paying for comparable examples now.

Key takeaway

A useful estimate starts with correct identification and recent sold comparables. Asking prices are evidence of a seller’s expectation, not proof of market value.

01

Identification comes before valuation

A valuation is only as reliable as the identification behind it. Record the object’s likely maker, place, period, material, dimensions, construction, marks, and intended use. Small differences in factory, pattern, size, edition, or date can create large differences in demand.

Do not rely on one signature or label. Compare the mark with the object’s materials and construction, and consider whether parts have been replaced, married together, or substantially altered.

02

Rarity matters only when buyers care

An object can be rare because few were made, few survived, or it represents an unusual maker, form, pattern, or historical moment. But rarity does not automatically create value. There must also be collector interest and enough confidence in the object’s identity.

Conversely, some relatively common designs remain valuable because they are useful, decorative, associated with a respected maker, or consistently sought after.

  • Documented maker, workshop, or designer
  • Scarce form, size, color, pattern, or edition
  • Connection to a collecting category with active demand
  • Features that distinguish the object from later reproductions
03

Condition and originality change the comparison

Condition should be judged in relation to the object’s age, material, and normal use. A small stable age crack may be expected in old wood, while a major structural repair, replaced surface, drilled ceramic, shortened legs, or missing component can materially affect value.

Original finish, hardware, labels, boxes, frames, and documented accessories can be important. Restoration is not always negative, but its quality, extent, and reversibility matter. Describe repairs precisely rather than using vague labels such as “good for its age.”

04

Provenance can add confidence and significance

Provenance is the documented chain of ownership and history of an object. Receipts, inventories, exhibition labels, dated photographs, letters, and family records can support it. A compelling story without documents is interesting context, but it is not the same as verified provenance.

For some objects, provenance helps establish authenticity, legal ownership, or a connection to a notable person, place, collection, or event. It can increase interest, but the quality of the evidence matters more than the length of the story.

05

Use recent sold comparables

Look for completed auction or dealer sales involving the same maker or factory, similar date, form, dimensions, material, condition, and provenance. Prefer several recent results over one exceptional sale. Note whether the price includes a buyer’s premium and whether shipping, restoration, or regional demand affects the comparison.

Retail asking prices, auction estimates, insurance replacement values, estate values, and quick-sale offers answer different questions. Decide which kind of value you need before selecting evidence.

06

Treat automated estimates as research guidance

Antique Snap & Identify can help identify visible characteristics and provide an estimated market range to guide further research. Use the range to locate more relevant comparables and decide whether specialist attention is worthwhile.

For insurance, charitable donation, tax, estate, legal, or high-value sale purposes, obtain a written appraisal from a qualified professional who can inspect the object and state the intended use and effective date of the valuation.

REF

Sources and further reading

These references support the research and object-care principles in this guide. External pages open in a new tab.

  1. Smithsonian Museum Conservation Institute: furniture authentication indicators
  2. Canadian Conservation Institute: scientific analysis of collection materials
  3. Canadian Conservation Institute: care guidance by material
Important: Photo identification and estimated value ranges are research aids, not guarantees of authenticity or certified appraisals. Consult a qualified specialist when legal, insurance, tax, or high-value decisions are involved.