Analysis & grading

Service, Payment and Shipping Instructions by Laboratory Location



Please note: Services and shipping methods are limited or unavailable in some locations due to the coronavirus response.  Find out more. 

No matter where you are in the world, you can submit diamonds, coloured stones and pearls directly to any GIA laboratory location and be assured of consistent quality and service.  

WHERE TO SUBMIT

On-site services at each lab location vary. If you submit your item to a location where the requested service is not available, your item will be securely transported to the appropriate GIA laboratory and returned to its point of origin. Additional shipping charges will be applied in this instance. 

On-site Services by Location
                                  D-to-Z
Diamonds
D-to-Z
Diamond Origin
Coloured
Diamonds
Coloured
Diamond Origin
Laboratory-Grown
Diamonds
Coloured
Stones
              
Pearls
Cultured Pearl Classification Diamond
Sealing
Service*
Carlsbad      
New York  
Antwerp** 0.15-3.99 carats 0.15-3.99
carats
    0.15-3.99 carats       0.15-8.00 carats
Bangkok 0.15-3.99 carats       0.15-3.99 carats  
Gaborone 0.15-3.99 carats 0.15-3.99
carats
    0.15-3.99 carats        
Hong Kong 0.15-3.99 carats   Yellow Diamonds
0.15-3.99 carats
  0.15-3.99 carats  
Johannesburg 0.15-3.99 carats 0.15-3.99
carats
    0.15-3.99 carats      
Mumbai 0.15-3.99 carats 0.15-3.99
carats
    0.15-3.99 carats       0.15-7.99 carats
Ramat Gan 0.15-3.99 carats 0.15-3.99
carats
    0.15-3.99 carats      
Surat 0.15-0.69 carats 0.15-0.69
carats
    0.15-0.69
carats
       
Tokyo 0.15-3.99 carats 0.15-3.99
carats
    0.15-3.99 carats    

*Sealing Service has been suspended as of Friday, 17 January 2020
**Some follow-up services are completed locally. Find out more.

Melee Analysis Service

  Round melee with colour sorting option Round melee without colour sorting option Fancy-shaped melee (no colour sorting option)
Carlsbad  
New York  
Antwerp      
Bangkok      
Gaborone      
Hong Kong
Johannesburg      
Mumbai
Ramat Gan      
Surat
Tokyo  

Note that additional taxes/fees may apply, including local taxes, depending on the country where your items are submitted.

How to submit

You must have a GIA laboratory service account prior to submitting any items to GIA for analysis. If you do not already have an account, create a new lab account. If you are not submitting in person, please call the GIA laboratory to which you are sending your items to provide your credit card information.

When shipping items to GIA, please make sure you wrap each item in individual parcel papers. Along with your shipment, please include a memo with the following information:

  • Client Name & Account Number
  • Main Address (must match the main address provided on your client account)
  • Primary Account Contact
  • Service(s) Requested by Stone - please include size and shape of each stone
  • Return shipping instructions (if any)
  • Special instructions

How to Prepare Your Shipment


Acceptable Shipping Methods

Acceptable shipping methods at each laboratory location vary. Please be sure to use one of the accepted shipping methods.
 

  U.S. Registered Mail Air/Armoured Courier In Person
Drop Off/Pick Up
FedEx/UPS
Carlsbad  
New York * * * *
Antwerp ** ** ** **
Bangkok   Malca-Amit or Brinks only  
Gaborone   Malca-Amit or Brinks only  
Hong Kong    
Johannesburg   Malca-Amit or Brinks only  
Mumbai    
Ramat Gan     ***  
Surat    
Tokyo    

*Please note that our New York location has different shipping addresses, depending on the shipping method.
**Please note that our Antwerp location has different shipping addresses, depending on the shipping method.
***By appointment only. Limit 2 appointments per week/5 items per appointment.

PAYMENT FOR LABORATORY SERVICES

Acceptable methods of payment:

  • Cashier’s cheques
  • Business cheques (from the gem and jewellery industry)
  • Money orders
  • Credit card – only available from some laboratory locations. Find out more.
  • Bank transfer

Additional payment requirements:

  • Payment must be made in full before reports and items will be returned unless you are approved to invoice. For more information on this process, please contact us
  • Payment must be made in the local currency of the laboratory the submission was made to
  • Cashier’s cheques, business cheques and money orders will be drawn on a bank within the local country of the laboratory to which the payment was submitted. Items shipped to GIA from GIA Lab Consolidators must be paid in U.S. dollars
  • Call or email your local laboratory for bank transfer information including GIA’s account number and sort code.

For questions about payment, please call +1 760 603 4500 option 8, or contact us

 

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