On-site testing

We regularly travel worldwide for on-site testing to test prestigious coloured gemstones.
Please note that diamonds and pearls are not tested in Bangkok and Hong Kong.

Testing prices

Upcoming on-site testing

23 August – 01 September 2023 Bangkok
14 – 24 September 2023    Hong Kong
01 – 05 November 2023 Geneva
10 – 19 January 2024  Bangkok
30 January – 04 February 2024 Tucson

Contact us

Bangkok

We regularly travel to Bangkok for on-site testing to analyse prestigious coloured gemstones. Our office is in the gem trade district at the Silom Road. We are equipped with our mobile instruments and spectrometers, every gemstone is meticulously analysed. Please note that diamonds and pearls are not tested in Bangkok.

SSEF in Bangkok:

11 – 20 January 2023

22 – 26 May 2023

23 August – 01 September 2023

10 – 19 January 2024

Appointments

Please contact SSEF in Switzerland in advance or +66 (0)81 257 75 20 or +66 (0)81 844 33 52 during Bangkok on-site testing.

SSEF office in Bangkok:

Swiss Gemmological Institute SSEF, Silom 19 Building, Unit 513, 5th Floor, 45/1 Soi Silom 19, Silom Road, Bangrak, Bangkok 10500

Hong Kong

  • Hong Kong is one of the most important hubs for the gemstone and jewellery trade.

SSEF in Hong Kong:

We will next be present at the September 2023 show. Please note that diamonds and pearls are not tested in Hong Kong.

Apart from testing your gemstones at the jewellery fairs, we also offer a pre-show testing services at our Hong Kong business centre, located in Central. This pre-show service is by appointment only.

  • 14-16 September 2023: pre-show testing (by appointment only)
  • 18-22 September 2023 AWE (Booth 6Q00)
  • 20-24 September 2023 CEC (Booth 3M205)

Appointments

Please contact SSEF in Switzerland. Our local phone number in Hong Kong (during SSEF presence in HK) is +852 649 649 94.

USA

SSEF in Tucson:

We will next be present at the AGTA GemFair Tucson from the 30 January – 04 February 2024. Please note that diamonds and pearls are not tested in Tucson.

GemGenève

SSEF at GemGenève:

We will next be present at the GemGenève show from 01 – 05 November 2023.

More information about this show can be found here.

Have you heard about our shipping services ?

Please note that items for testing can easily be shipped to SSEF using our shuttle services. This method, proven for many years with our shipping partner Ferrari, is the fastest way to obtain a fast expertise for your items.

How to submit
Shipping prices