MB&B Gemological Services, LLC 
and Fine Jewelry  

MB&B Gemological Services

Jewelry Appraisals
Gemstone Identification
GIA Graded Diamond Sales
Fine Jewelry 

Our Contact Information

MB&B Gemological Services, LLC

3380 Ruben Torres Blvd (Suite 203-F)

Brownsville, Texas 78526


(956) 346-7294 (Local)


[email protected] 

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Business Hours:


Monday to Friday: 8:00 AM – 5:00 PM*

Saturday to Sunday: Closed 

*Please let us know if our hours conflict with your schedule.  We can accommodate any schedule needs.

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