Next OPT in Bangkok

Once again the Gübelin Gem Lab is bringing its expertise to you! We are pleased to announce our next off-premise gem testing service in Bangkok and invite you to take this opportunity to use our services near you.

Date, Duration: 23 May – 2 June 2022
Opening hours: 9 a.m. – 6 p.m.

29th Floor, Jewelry Trade Center Building
919/363 Silom Road, Silom Bangrak
Bangkok 10500, Thailand

Local phone: +662 267 4442 or 4443
Local cell phone: +66 98 257 1049

For organisational purposes we kindly ask you to contact us in advance in order to
arrange an appointment (call +852 2868 2781 or e-mail