Diamond identifier - AI Scan app icon 💎 AI Tools

Diamond identifier - AI Scan

Scan a diamond and get an instant read on its quality and value.

4.3 out of 5 from 41 App Store ratings

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Diamond Identifier is an AI-powered app that estimates a diamond’s key characteristics — color, clarity, cut, and approximate carat — from a photo, then gives you a ballpark value range. It’s built as a fast first step before a professional appraisal, not a replacement for one.

Point your phone at a loose stone or a set ring, capture a scan, and the app returns a plain-language breakdown of what it sees. It’s designed for buyers, sellers, and curious owners who want a quick, private sense of what they’re holding.

Screenshots

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What it does

AI quality estimate

Gets an approximate read on the 4 Cs — color, clarity, cut, and carat — from a single scan.

Value range

Translates those characteristics into a rough market value range so you have a number to start from.

Works on rings too

Scan loose diamonds or stones already set in rings and jewelry.

Plain-language results

No gemology degree required — results are explained in everyday terms.

How to check a diamond in four steps

  1. Clean the stone and use daylight

    Wipe off skin oil, then photograph face-up in indirect daylight, as close as your camera focuses, with nothing reflecting in the stone.

  2. Scan it

    Diamond Identifier estimates color, clarity, cut and approximate carat, and turns them into a ballpark value range.

  3. Run the quick home checks

    The fog test and, for loose stones, the read-through test screen out glass and cubic zirconia. Neither rules out moissanite or lab-grown diamond.

  4. Confirm with a jeweler or lab

    A combination diamond/moissanite tester separates simulants; only a gem lab report confirms natural or lab-grown origin and the grades.

When to use it

  • You inherited a ring and want a rough idea of what it’s worth before visiting a jeweler.
  • You’re shopping and want a second opinion on a stone before you commit.
  • You’re selling and need a starting point for negotiation.
  • You’re simply curious about a diamond you already own.

What a photo scan can and can’t tell you about a diamond

What a photo scan can and can’t tell you about a diamond
QuestionFrom a photoNeeds a jeweler or lab
Shape and cut styleYes—
Approximate color and clarityEstimateGraded color and clarity
Carat weightRough estimateWeighing loose, or measuring set
Diamond vs moissanite or CZClues onlyDiamond/moissanite tester
Natural vs lab-grownNoLab instruments and report
TreatmentsNoLab report
ValueBallpark rangeAppraisal

Frequently asked questions

Is Diamond Identifier a substitute for a certified appraisal?

No. It gives a fast, AI-based estimate to orient you. For insurance, resale, or purchase decisions, always confirm with a certified gemologist and an official lab report (e.g. GIA).

Can it scan a diamond that’s already in a ring?

Yes. It works on both loose stones and diamonds set in rings and other jewelry.

What does it estimate?

It estimates the 4 Cs — color, clarity, cut, and approximate carat — and gives a rough value range based on those characteristics.

Which devices does it run on?

It’s available on the App Store for iPhone and iPad, and on Google Play for Android.

Can an app tell if a diamond is real?

No app can prove it from a photo. It can estimate appearance, and home tests screen out glass and cubic zirconia, but separating diamond from moissanite needs a tester and natural from lab-grown needs a lab.

How accurate is the carat estimate from a photo?

Approximate. Carat is weight, and depth hidden in a setting changes it; a jeweler weighs a loose stone or estimates a set one from measured millimetres.

What is a 1 carat diamond worth?

It varies by several times with cut, color, clarity and whether it is natural or lab-grown. Use the scan for a starting range and compare stones with the same grades on an independent report.

Does it work on lab-grown diamonds?

It estimates their appearance the same way, but it cannot tell you a stone is lab-grown. Check the report or the laser inscription on the girdle.

Sources and further reading

  1. The 4Cs of Diamond Quality — GIA (Gemological Institute of America)
  2. Diamond Description — GIA
  3. Diamond simulant — Wikipedia
  4. Synthetic diamond — Wikipedia

Links checked September 19, 2026.

Related reading

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