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Gem Lab Services
Gem Lab is a GIA LabDirect Consolidator operating a full service window in Ramat Gan and Antwerp for the GIA Laboratories. As an authorized “GIA LabDirect Program” participant, Gem Lab provides easy, seamless and convenient access for clients looking to submit diamonds and precious stones for grading at G.I.A. laboratories around the world. From the moment your precious stones are entrusted to our expert care, you're guaranteed peace of mind throughout the process. We handle all logistical procedures required for transporting your goods to and from the labs, as well as communicating directly with the grading lab on your behalf. Your local drop-off and pick-up window facilitates a speedy and secure service, tailored to your needs and timetable.
Gem Lab prepares the stones for shipping to the designated gemological laboratory, ensures fast and secure delivery to the lab and relays grading results upon completion of the grading process.
Gem Lab Services is a division of the Malca-Amit Group of Companies.

Gem Lab Services bvba
Hoveniersstraat 50
Antwerpen 2018, Belgium
Tel.: +32 3 2250000
Fax: +32 3 2340000

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I want to send/submit Diamonds
How does it work?

  • Turnaround Times / Return Dates

    • Question: What do the GIA Turnaround Times and Return Dates mean


      Formerly, GIA worked according to turnaround times (projected working days that it would take for a stone, from the day it was taken in until it will have grading results).

      The GIA has recently changed their reference and refers now to "return dates". Return dates are the dates that GIA projects that stones will be ready for pickup at the lab with the complete grading report. These dates vary between the intake locations and between the various stone types and sizes. These dates take into consideration also weekends and scheduled holidays.

    • Question: What are the Return Dates for the moment?


      For current published GIA Return Dates by location, please follow this link:


  • Service fees

    • Question: What would it cost to have my stones graded by GIA?


      Submission fees mainly consists of GIA laboratory fees, depending on the provided services, and shipment related fees.

      In order to receive a comprehensive quote please contact our office.

      If you would like to view GIA pricelists, please follow this link and scorl down to the appropriate section:


  • Facetware cut estimator

    • Question: GIA cut grade estimator


      GIA grades cut on Round Brilliant Cut diamonds according to pre-set and calculated parameters.

      GIA created a Cut Estimator, called Facetware, in which you can enter a few parameters of your cut and receive the expected cut grade by GIA.

      please follow:

      Please register for the tool and immediately start using it. Enjoy!

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