The six criteria
1. Independent certification
Every diamond should come with a GIA or IGI report and the number inscribed on the girdle. Without it there is no way to defend the price to the end customer or to resell. See GIA vs IGI.
2. Origin traceability
Ask which supplier or cutting center each stone comes from. A serious wholesaler documents the chain and inspects the stone before it enters the catalog. At Bamo every piece goes through internal review, no exceptions.
3. Inventory in Mexico
Importing stone by stone means weeks of waiting and currency risk on every purchase. A supplier with local inventory delivers common goods immediately and uses its international network only for specific requests. Bamo keeps inventory in Monterrey and complements it with suppliers in the main cutting centers.
4. Replacement and equivalents
Certified stones are unique: they sell and disappear. The supplier must be able to propose equivalents with the same specifications when the stone you wanted is gone. See buying by certificate number.
5. Melee and manufacturing
If your business produces jewelry, you need calibrated melee with consistent grading and, often, a workshop. Bamo supplies 1.0 to 3.0 mm melee and runs its own fine jewelry workshop in 10K, 14K and 18K gold, with white-label service.
6. Discretion
Your supplier should not appear in front of your clients. At Bamo, your clients are yours: we never contact them, we do not expose your operations, and our name does not appear on the pieces we make for your brand.
Questions worth asking any supplier
- Which laboratories certify your stones, and can I verify every report online?
- How much of the catalog is physically in Mexico and how much is imported to order?
- What happens if the stone I confirmed has already sold?
- Do you carry natural and lab-grown, and how are they distinguished in the paperwork?
- How is it delivered and who is responsible for the stone in transit?
Who Bamo serves
Established jewelers, designers with their own brand and collectors, from our office in San Pedro Garza García, Nuevo León, with delivery throughout Mexico. The full catalog is private: you request access, we verify the profile and issue credentials within 24 business hours.