TroCuri -coin grading

Coin grading.

How we grade coins on the 1 to 70 Sheldon scale.

Every coin is assessed by our AI grading assistant against the 70-point Sheldon scale used across the hobby, then double-checked by a person.

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How TroCuri grades.

TroCuri grades coins on the 70-point Sheldon scale (and the matching scale for paper money), working from NGC's published grading standards. It reads both faces and judges luster, strike, and wear, then assigns the right strike designation - Mint State, Proof, or Special - and the correct color or cameo character (RD / RB / BN for copper, Cameo for proofs). Just as important: it flags coins that have been cleaned, harshly polished, altered, or environmentally damaged and marks them 'Details' instead of giving a clean number - so a problem coin is never dressed up. It then prices from recent sold comps for the same type and year.

Grading is one step of TroCuri, our in-house Listing Tools pipeline: it also identifies each item, scrapes recent sold comps, recommends a fair price, and composes the listing before a person reviews it.

What it looks at.

Luster and original surfaces
Wear on the highest design points
Contact marks, scratches, and rim dings
Strike sharpness and overall eye appeal
Date, mint mark, and any signs of cleaning or damage

The 1 to 70 Sheldon scale, in plain terms

MS / PF 60 to 70 Mint State - uncirculated, no wear
AU 50 to 58 About Uncirculated - just a trace of wear on the high points
XF 40 to 45 Extremely Fine - light wear, sharp detail
VF 20 to 35 Very Fine - moderate, even wear
F to VG 8 to 15 Fine to Very Good - well worn but clear
G to AG 1 to 6 Good to About Good - heavily worn

What you get on every listing.

A grade on the 1 to 70 scale with a short condition note
Sharp photos of both sides of the actual coin
Clear flags for cleaning or damage when present - no surprises

AI-assisted, human-confirmed.

Our grades are careful in-house estimates that help us set fair prices and give you clear expectations. They are not a replacement for professional third-party grading such as CGC, PSA, or PCGS. When an item has been professionally graded, the listing says so. If there is a flaw, it is in the photos and the description.