American International Gemologists
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How do you grade gems and jewelry in the AIG laboratory?

A team of highly trained gemologists examine each diamond and or colored gemstone submitted to the AIG laboratory, using the most advanced gemological equipment available. Additionally, a team of highly trained horologists & gemologists examines each wristwatch submitted. Every appraisal and report generated in the AIG laboratory undergoes a complete quality control review by our Quality Control department. These procedures ensure an accurate analysis of the diamond, wristwatch or colored gemstone.


What are qualifications of the AIG Gemologists?

The laboratory staff is made up of Graduate Gemologists (GG) educated by the Gemological Institute of America. The laboratory staff has almost one hundred (100) years of combined experience grading diamonds, colored gemstones & generating appraisals and reports.


What type of equipment is used by the Gemologists?        
 Each AIG Labs Gemologist uses a fully corrected triplet loupe, a stereo binocular microscope, master color comparison diamond set, electronic carat balancing scale, synthetic diamond detection device, optical measuring device, proportion scope-computer aided non-contact gemstone proportioning measuring system, electronic digital caliper, spectroscope, long and short wave ultraviolet light, fiber optic illumination, diffused/balanced north daylight color grader instrument, electronic gold/platinum testing unit, refractometer, polariscope and specific gravity liquids.

How does AIG reach a “Retail Replacement Value” conclusion? The AIG laboratory uses current market pricing for; creative design, gemstones, labor, materials, and precious metals, along with comparable sales data from local and national retail jewelry stores based in regional shopping malls. The regional shopping mall jewelry store is the marketplace in which the Retail Replacement Value appraisal is used. 

Does the Appraisal have built in security measures?         
The Appraisal does have several security measures: including; a tamperproof background design, an advanced lamination process, specific color use areas, and a unique laboratory identification numbering system.

How much does an Appraisal Cost?  
Click on the tab "Fee Schedule" for the current AIG Labs Appraisal fees.

How do I ship merchandise to AIG for an Appraisal?       
There are several ways to submit gem & jewelry items to the laboratory for evaluation and or an Appraisal. If you are located in the Los Angeles California area you may make an appointment to come into the laboratory. Or, ship the item(s) to us under neutral cover, double boxed (see detailed shipping instructions) by one of the following: United States Express, Registered, or Priority Mail, Federal Express, United Parcel Service, or Brinks. Brinks has Drop Off windows in major cities worldwide.
Colored gemstones, diamonds, jewelry, and wristwatches received for evaluation are processed promptly. Once received, our scheduling department will coordinate with you personally concerning the timetable for processing, reporting, fees, and the return delivery or pick up of your merchandise and reports or appraisals.

American International Gemologists
While you Watch, While you Wait Gem & Jewelry Appraisals

2715 Edgeview Ct.
Newbury Park, CA 91320

Phone (805) 499- 3012
FAX (805) 375-6560
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