The SGL Advantage

Here's what makes our diamond certification stand apart.

Certified by Science

Certified
by Science

Backed by gemmological experts and global standard protocols.

Independent & Neutral

Independent
& Neutral

Unbiased diamond grading with no conflict of interest.

Eco Conscious

Eco
Conscious

Pioneers in sustainability with eco certifications and traceability.

Dia Screen

Ensure diamonds authenticity instantly with our advanced detection technology

Dia Screen Machines