Gemstone Submission / Shipping Information

We are pleased to offer various options for submitting your property to our laboratories around the world. If you do not currently have a GRS account at your preferred location, kindly fill in our account registration form prior to submitting your gemstones.

↓ Account Registration Form

Below you will find detailed information for stone submission to our Swiss office as well as our independent partner laboratories around the world.

  1. Submission of goods to GRS Switzerland

    We accept shipments from all major global security transport providers; G4S International Logistics, Ferrari Express Inc., Brinks Global Services, Malca Amit etc.  Please use your preferred carrier.

    Prior to shipping goods to our laboratory, kindly inform us by email or fax about the intended number of stones being submitted for testing. Include an itemized list indicating their weights and wholesale prices. Please include any special instructions, e.g. if the return-shipment address or the shipping information differ from the inbound shipment.

    Shipping Address

    GRS Gemresearch Swisslab AG
    Baldismossstrasse 14
    6043 Adligenswil
    Switzerland

    T: +41 41 210 31 31
    F: +41 41 210 31 34
    swiss@gemresearch.ch

    Please contact us directly about current turnaround times or if you have any additional questions.

    IMPORTANT: It is the clients’ responsibility to insure the goods adequately and to provide the correct customs information.

  2. Submission of goods to GRS Hong Kong

    You may submit your stones directly at our laboratory in Central, Hong Kong. Please note the following opening hours:

    Mon
    By appointment only

    Tue to Fri
    10am to 1pm / 2pm to 5pm

    Sat, Sun, Public Holiday
    Closed

    We have extended opening hours during the March, June and September Hong Kong jewellery tradeshows.

    Prior to shipping goods to our laboratory, kindly inform us by email or fax about the intended number of stones being submitted for testing. Include an itemized list indicating their weights and wholesale prices. Please include any special instructions, e.g. if the return-shipment address or the shipping information differ from the inbound shipment.

    We accept shipments from all major global security transport providers; G4S International Logistics, Ferrari Express Inc., Brinks Global Services, Malca Amit etc.  Please use your preferred carrier.

    Shipping and laboratory address

    GRS Lab (Hong Kong) Limited
    Unit B, 6th Floor,
    9 Queen’s Road, Central
    Hong Kong

    T: +852 2376 3888
    F: +852 2568 3888
    hk@gemresearch.ch

    Please contact us directly about the current turnaround times or if you have any additional questions.

    IMPORTANT: It is the clients’ responsibility to insure the goods adequately and to provide the correct customs information.

  3. Submission of goods to GRS Thailand

    You may submit your stones directly at our laboratory in Silom, Bangkok. Please note the following opening hours:

    Mon to Fri
    9am to 6pm

    Sat, Sun, Public Holiday
    Closed

    Our laboratory address

    DR Peretti Co., Ltd.
    Unit 501-506, Silom 19 Building
    Soi 19, Silom, Bangkrak
    Thailand

    T: +66 2237 5898
    F: +66 2237 5899
    info@gemresearch.ch

    Important: Due to Thai customs and import regulations we do not accept any shipments to our laboratory in Bangkok. You may send the goods our laboratories in Switzerland or Hong Kong. Please contact us directly about the current turnaround times or if you have any additional questions.

  4. Submission of goods to GRS Sri Lanka

    You may submit your stones directly at our laboratory on Galle Road, Colombo. Please note the following opening hours:

    Mon to Fri
    09:30am to 5pm

    Sat, Sun, Public Holidays
    Closed

    Our laboratory address

    GRS Lanka (PVT) Ltd.
    471 3/1 Galle Road
    Colombo 3
    Sri Lanka

    T: +94 112 500 666
    srilanka@gemresearch.ch

    Important: Due to Sir Lankan customs and import regulations we do not accept shipments to our laboratory in Colombo. You may send the goods our laboratories in Switzerland or Hong Kong. Please contact us directly about the current turnaround times or if you have any additional questions.