Submit an item - World Gemological Institute
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   Submit an Item   

Orders are usually shipped within 1 business day of receipt of the total payment.

No matter where you are in the world, you can submit diamond, coloured stones, jewellery and pearls directly to WGI laboratory and be assured of consistent quality and service.

How you submit

Please fill out the WGI form with all the information needed and include it in your parcel. It is mandatory to sign this form.

Please email us the form so that we are informed about your mailing as well.

Prior to shipping goods to our laboratory, kindly inform us by email 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

100 Hatton Garden, Suite 207



United Kingdom


Phone: +44(0)20 3198 0478

Please contact us directly about current turnaround times or if you have any additional questions. You may submit your stones directly at our laboratory in London. Please note the following opening hours:


Monday to Friday

10 am to 6 pm

Saturday, Sunday, Public Holiday




Credit / Debit Card

We accept Visa, Mastercard



Payment Advice When paying by cheque please enter the amount below, detach this payment advice slip and enclose with the cheque.



Bank Transfer to: WGI ACADEMY LTD

BANK SORT CODE: 60 – 83 – 71

ACCOUNT: 75193300

To avoid delays in shipping, please note that all orders must be paid in full before the purchased item is sent.

Please contact us if you have any questions about the payment. We’re here to help


Track your item

We’ve made it easy to track the progress of your Special Delivery Guaranteed™ mail with our online Track & Trace tool. All you need to do is enter your 13 digit reference number. Track your item now. Check to see if your Special Delivery Guaranteed™ item has arrived on your mobile by entering into your smartphone’s web browser.