Last month, a client in Dubai nearly lost $45,000. He was buying a 5ct D VVS1 HPHT stone from a "trusted" supplier in Guangzhou. The IGI certificate looked perfect. The price was "too good to pass up."
The certificate was fake.
The Problem Is Growing
As lab-grown diamond prices drop, the incentive to commit fraud increases. Fake certificates are now sophisticated enough to fool even experienced buyers.
Here's how to protect yourself:
Red Flag #1: The Report Number Doesn't Verify Online
IGI has an online verification system at igi.org/verify-your-report. Enter the report number. If it doesn't pull up, it's fake.
But here's the trick: Some scammers use REAL report numbers from different stones. So even if the number verifies, you need to check that the 4Cs match exactly.
Red Flag #2: The Laser Inscription Is Missing or Wrong
All IGI-certified lab-grown diamonds should have the report number laser-inscribed on the girdle. If the stone has no inscription, or the inscription doesn't match the certificate, walk away.
Red Flag #3: The Price Is "Too Good"
If a 3ct D VVS1 is being offered at 20% below market, ask yourself: Why?
Legitimate suppliers operate on thin margins. Deep discounts are a red flag.
Red Flag #4: The Seller Rushes You
"This stone is reserved for another client, but I can hold it for you if you wire 50% deposit today."
Pressure tactics are a classic scam indicator. Legitimate suppliers will give you time to verify.
Red Flag #5: No Physical Verification Allowed
If the seller refuses to let you inspect the stone in person (or via a trusted third party), that's a major red flag.
Every stone we ship includes:
1. Original IGI certificate (we verify before purchase)
2. Laser inscription matching report number
3. Video under different lighting conditions
4. Option for third-party inspection in Shenzhen before shipping
What to Do If You Suspect Fraud
If you've already paid and suspect the certificate is fake:
- Contact IGI directly with the report number
- File a police report (yes, even for international transactions)
- Contact your bank to attempt a wire recall (time-sensitive)
- Report the supplier to industry groups (e.g., JVC, CIBJO)
Prevention is better than recovery. Work with suppliers who have verifiable track records and transparent processes.