"A certificate is a document. Protection is a process."
Verify the physical authenticity of your diamond and ensure it perfectly
matches its certification before making payment.
The complete verification journey is managed securely through the
NSD App.
A buyer-first protection protocol — not just another verification service.
We sit between the deal and the decision—verifying facts, reducing risks and supporting clean execution before payment.
Every technical parameter affecting value is independently verified before payment.
Independent market positioning with negotiation guidance helps buyers avoid overpaying.
To eliminate paper-to-stone discrepancies before capital deployment — the same technical stack is used for every verification.
Physical confirmation of the report ID inscribed on the girdle.
Instant verification of fake or edited digital / physical certificates.
Independent market verification of Carat, Colour, Cut & Clarity.
Brown, Green, Milky & Fluorescence screening before purchase.
CVD / HPHT technical screening for undisclosed synthetic diamonds.
Physical dimensions compared with certificate specifications.
Premium optical symmetry analysis for ideal-cut diamonds.
A clear, controlled verification process from request to secure execution.
Submit your diamond and certificate details in the NSD App. Our team reviews the request and confirms the verification scope.
On-site inspection, report verification and technical review of all critical quality checkpoints.
Photo/video documentation, risk evaluation and independent market value assessment.
Every transaction proceeds only after your approval and verification confirmation.
Billing, shipment coordination, parcel sealing and post-verification support.
Select the plan that best matches your diamond verification and authentication requirements.
Essential diamond verification and authentication support for confident and secure purchases.
Enhanced verification and priority support for high-value, overseas, and complex diamond transactions.
A clear recommendation based on the verification evidence, technical findings and identified risk.
Report, Laser, Measurement, Inclusion, Visual and BGM/Fluorescence are aligned. You can proceed with confidence.
Minor mismatch, value concern or seller delay. Additional verification is recommended before payment.
Stone-report mismatch, suspicious report, CVD doubt or insufficient proof.
If genuine doubt still exists after the first verification, NSD can arrange an independent second verification at the seller's location. This is not unlimited re-checking — it is a second professional opinion for genuine cases.
Every case is documented with customer data, seller data, report data, selected verification, evidence pack, risk score and the final recommendation. If proof is incomplete, we clearly mention what is missing.