Quality control laboratory

Increase your yield by eliminating defective material



Our laboratory offers quality control services both for non-polished and polished material: sapphire, spinel, glass and optical crystals. Scientific Visual experts analyze your samples with SapphiroScan™ and provide you with defect distribution figures and gradings for each sample. The service is ideal for sapphire manufacturers who wish to reject flawed sapphire pieces prior to polishing or to analyze pre-forms which will require costly processing.

How it helps you

Outsourcing your quality control to Scientific Visual helps you avoid substandard material entering the value stream. You receive the pre-forms sorted in boxes according to your quality control criteria. Scientific Visual inspects incoming and outgoing material for you, letting you gain an advantage over your competitors by letting you focus on smoothly polishing or trading only high quality material.

Scientific Visual’s quality control services allow you to lower your production process risks and step ahead of your competitors.

How it works

Early stage defect detection is the non-destructive process performed using SapphiroScan™ equipment that identifies material defects in non-polished watch covers that could make them unusable after polishing. Scientific Visual specializes in providing testing services to cutters, polishers and final users. Based on the QC results we also advise on optimizing sapphire production processes and decreasing processing costs.

Our laboratory is equipped with latest SapphiroScan™ automatic technology which is available for both round and rectangular sample testing. Our QC services include automatic detection inspection as well as sample sorting tailored to your needs.

QC services currently being offered include the following:


Round or rectangular non-polished watch faces

Material Sapphire, spinel, mineral glass
Diameter (side) 24-42 mm
Thickness 1.8 – 4 mm
Surface quality Not contaminated by foreign material

For inspecting pieces outside of this range, or polished pieces – please contact us.

Scientific Visual offers its automatic defect detection at its facilities using its innovative SapphiroScan™ technology. The inspection results are delivered to customers in electronic form. The inspected pieces are then sorted into batches according to defect grades as required by the client, or by industry standard SapphiroScan™ grades. Batches are shipped by post or can be picked up from Scientific Visual’s laboratory in Lausanne.

What is delivered

The standard SapphiroScan™ inspection report contains:

Demo results dashboard generic

Image with defects colour-marked for each sample:

Quality grade for each sample: 936 sample distribution colors copy2

Synoptic plots showing defect distribution in the batch: linear_bubble_sizes

SapphiroScan Quality Signature ™ for the entire batch:

digital_signature 760 pcs

Also available as an option is a 3D model of the defects in a sample.

Scientific Visual has the capability to develop and implement an inspection program based on industry standards or customized standards as specified by you or your customers.