Identify a gemstone
from a photo

Upload one clear photo with the gemstone clearly visible. We’ll compare visible details and show the most likely matches.

Choose a gemstone photo

JPG, PNG or WebP · One clear subject works best

or drag and drop here

What this identifier looks for

cut or crystal form

Compared with the other visible details in your photo.

color zoning

Compared with the other visible details in your photo.

transparency

Compared with the other visible details in your photo.

inclusions and luster

Compared with the other visible details in your photo.

Useful for

loose stonesrough gemscabochonsfaceted gems
Keep in mind

A photo cannot verify gemstone identity, treatment, origin, or value. Use gemological testing for purchases, insurance, or authenticity decisions.

A focused photo analysis

What a clear photo can reveal

The Gemstone Identifier compares the visible subject with clues selected specifically for gemstones. That focused approach keeps the result relevant to this topic instead of returning a generic image description.

It examines cut or crystal form, color zoning, transparency, inclusions and luster. The result may include likely names, descriptive evidence, contextual information, and confidence when that field is part of the topic’s verified response format.

04

Core visual clues

01

cut or crystal form

02

color zoning

03

transparency

04

inclusions and luster

How this result is built

A method tuned to gemstones

Read the full methodology →
01

Signals considered

The topic configuration asks the model to compare the visible evidence that matters for this subject.

cut or crystal formcolor zoningtransparencyinclusions and luster
02

Structured result

The response must fit the verified schema for this identifier instead of returning an open-ended image description.

NameClassificationDescriptionConfidenceCompositionFormationHardnessCharacteristics
03

Limits and next steps

A photo cannot verify gemstone identity, treatment, origin, or value. Use gemological testing for purchases, insurance, or authenticity decisions.

Confidence, when shown, is a model estimate—not a calibrated probability or professional confirmation.

Questions

Before you upload

How do I use the Gemstone Identifier?+

Choose one clear photo with the gemstone clearly visible, wait for it to be prepared in your browser, and select “Identify this photo.” The result compares the visible details with likely matches.

What details does the Gemstone Identifier analyze?+

It focuses on cut or crystal form, color zoning, transparency, inclusions and luster. Clear, well-lit photos with the subject filling most of the frame usually provide the most useful result.

How reliable is a result from the Gemstone Identifier?+

A photo result is a starting point, not a guaranteed determination. Image quality, angle, missing context, lookalike subjects, and regional variation can all affect the match.

What should I know before relying on this result?+

A photo cannot verify gemstone identity, treatment, origin, or value. Use gemological testing for purchases, insurance, or authenticity decisions.