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.
Below you will find detailed information for stone submission to our Swiss office as well as our independent partner laboratories around the world.
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
Baumschulweg 13
6045 Meggen
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.
You may submit your stones directly at our laboratory in Central, Hong Kong. Please note the following opening hours:
Mon 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
19/F, Man Hing Commercial Building
79-83 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.
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.
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.