Eye-clean is an informal observation that inclusions were not seen without magnification under stated conditions; it is not a GIA clarity grade. The phrase says nothing by itself about structural condition, treatment, or how every person will see the stone.

A viewing-condition guide to the informal term eye-clean that explains why distance, lighting, orientation, vision, size, facet pattern, and mounting state must be disclosed and why visibility is not durability.

What this guide covers

Treat eye-clean as a disclosed observation rather than a laboratory field.
Define distance, light, orientation, vision aid, and mounting state before comparing.
Keep visibility separate from grade, transparency, surface reach, treatment, and durability.

Give an eye-clean claim a viewing contract

Distance

Record the ordinary viewing distance and whether the observer used unaided or corrected vision.

Light

Name the lighting type and brightness instead of switching between dramatic spotlights and diffuse room light.

Orientation

Check face-up and relevant side views and disclose whether the stone was loose or mounted.

Observer

Acknowledge that eyesight, attention, experience, stone size, and facet pattern can change what is noticed.

Run a repeatable visibility check

1 — Read the clarity evidence
Start with the applicable grade, plot, comments, measurements, and stone identity rather than the seller phrase.
2 — Observe without magnification
Use the disclosed ordinary-distance conditions and inspect more than one orientation without hunting through a macro image first.
3 — Escalate separate risks
Ask a qualified reviewer about surface-reaching features, current damage, treatments, transparency, and setting work independently.

Eye-clean is not a guarantee

Scope boundary · evidence version 2026-07-19
This page cannot declare a diamond eye-clean for every observer or setting. The term is not a GIA grade, and an unaided-eye observation does not prove structural soundness, absence of treatment, future condition, value, or suitability for setting and repair.

Eye-clean questions

Does GIA print eye-clean on a report?

No. GIA does not use eye-clean as a clarity grade; it is an informal trade expression.

Does an SI grade always look eye-clean?

No. Visibility varies by the characteristic, stone, facet pattern, size, observer, and viewing conditions.

Does eye-clean mean durable?

No. It describes an unaided-eye observation, not condition, surface reach, treatment, or resistance to damage.

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