What is the median price for Ammonites?

Recent comps put the median around $35, with a broader range of $5–$3,000 depending on quality and documentation.

Does missing documentation lower value?

Yes. Strong provenance and restoration disclosure can swing value substantially; undisclosed restoration discovered later destroys trust and resale value.

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Ammonites Price Guide

Median Sale

$35

Range

$5–$3,000

Sample Size

250

Price Bands

Entry

Common specimens, worn condition, or minimal provenance.

$5–$21

Mid

Good condition, documented, the bulk of the market.

$21–$88

Premium

Museum-grade, rare, fully documented, expert-reviewed.

$88–$3,000

What Drives Value

Size, suture detail, iridescence, preservation Documentation and provenance can swing value by 30–50% — a specimen with a landowner release, chain of custody, and expert review commands a premium over an identical undocumented piece. Disclosed restoration lowers value but undisclosed restoration discovered later destroys it.

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