A clear portrait starts with a good photograph and a suitable stone. Send the original image, the required portrait size and the granite choice. Review the layout, then ask for a sample on the proposed material when the design or stone is new. A screen preview shows placement; the stone sample shows the finished contrast and detail.
Choose the artwork and stone together
| Control | Buyer requirement |
|---|---|
| Material | Labeled current-batch sample in the specified finish |
| Artwork | Final crop, resolution, tonal treatment and orientation |
| Test panel | Representative faces, gradients, text and critical details |
| Acceptance | Agreed viewing conditions and comparison with approved sample |
| Production records | Artwork version, material reference and inspection images |
What to approve before engraving
- Confirm the final dimensions and polished area.
- Prepare the image for the stone and intended viewing distance.
- Approve a representative test, not only a digital preview.
- Check placement, contrast, visible banding and edge transitions.
- Protect the finished face during packing.
Workshop photo examples
Compare the artwork, stone finish and completed appearance against the buyer-approved sample. These photos illustrate different stages and design details.
Ask how the workshop handles laser safety
Industrial lasers have beam and non-beam hazards. Buyers auditing a facility can ask about enclosure, access control, training, ventilation and maintenance evidence while recognizing that legal requirements vary by location.
Frequently Asked Questions
Which granite is best for laser etching?
Choose the current lot that produces the approved contrast and detail in a representative test.
Can a digital proof replace a stone sample?
No. A digital proof confirms layout; a physical test confirms the interaction of artwork, stone and settings.
Should contrast be specified with one universal number?
Use an approved sample and defined inspection conditions rather than an unsupported universal value.
Sources and further reading
- OSHA — Laser Hazards: U.S. beam and non-beam hazard guidance; local requirements must be checked separately.
- Natural Stone Institute — Testing Services: Material-test context, not proof of an individual product or supplier.
Updated October 5, 2026. Check the current requirements for your destination and order.