Enhance your purchase confidence with official certification by NGTC (National Gemstone Testing Center) — China’s top government-backed gemological institute founded in 1992.
This certificate provides authoritative grading and verification for each strand or jewelry piece, including:
✅ Pearl type (e.g. freshwater, Akoya, South Sea)
✅ Size / diameter range
✅ Color and overtone characteristics
✅ Luster intensity and surface quality
✅ Matching consistency across the strand
✅ Unique certificate ID number and QR code for online verification
📈 Why Choose NGTC Certification?
Certified by China’s most authoritative gem-testing agency
Recognized by CNAS and ISO/IEC 17025 standards
Trusted by buyers and retailers in Asia and worldwide
A printed certificate will be shipped together with your pearls
Adds credibility and resale value to your jewelry
⏱️ Processing Time
3 business days (Shipment will be delayed by 3 days to allow for certification.). A printed certificate will be included with your order.
📝 Note
One certificate covers one strand or jewelry item. If you’re ordering multiple strands and only want certain ones certified, please add the exact number of certificates to your cart.
Please do not purchase this certificate as a standalone item — it must be ordered together with a pearl product.
Reviews
Clear filtersThere are no reviews yet.