MB&B Gemological Services 
and Fine Jewelry 

MB&B Gemological Services

Jewelry Appraisals
Gemstone Identification
GIA Graded Diamond Sales
Fine Jewelry 

About MB&B Gemological Services

All of our office staff members are Alumni of the Gemological Institute of America (GIA) and have additional training from other industry recognized and respected organizations.    


As professional Gemologists, MB&B does not engage in any form of destructive testing, nor will gemstones ever be removed from their mountings.  

MB&B Gemological Laboratory Equipment

MB&B uses only the most advanced gemological equipment available.  Below is just a fraction of the professional equipment our laboratory uses on a daily basis. 

Master Stones

MB&B uses only diamonds that have passed the stringent requirement of both the GIA (Gemological Institute of America) and AGS (American Gem Society) to be registered and documented as Master Stones for the purpose of color grading diamonds.   

  • GIA/AGS Master Stones (Set of 17)
      Straight Grades (E, F, G, H, I, J, K, L, M and N)
      Split Grades (E-F, F-G, G-H, H-I, J-K, K-L, L-M)

  • Master Fluorescent Diamonds (Set of 4
      Faint, Medium, Strong and Very Strong

Master Pearls

MB&B uses only pearls that have passed the GIA (Gemological Institute of America) requirements to be used as a standard to grade and appraise other pearls.  

  • GIA Gem Pearl Master Comparison Set 
  • Complete Master Set of Tahitian and South Sea colored pearls


  • GIA DLScope Professional Microscope

  • Kassoy/Leica 64X Stereo Gemological Microscope

  • GIA Presentation Scope

Laboratory Equipment

  • GIA Duplex II Refractometer

  • GIA Illuminator Polariscope

  • GIA Proportion Scope

  • GIA Diamond Lite

  • GIA GemSet

  • GEMWORLD World of Color

  • GIA GEM Desk Model Prism Spectroscope

  • Dolan Jenner Fiber Optics

  • Kassoy SW/LW UV Cabinet

Credentials you can trust.

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