Welcome to SECAT, Gemmological Bureau

We are located in Netherlands and examine and certify gemstones for - primarily - Dutch and Belgian clients.

Because nothing is more important in the gemtrade as confidence, we guarantee that each one of our certificates or reports has been issued by a qualified and internationally recognized gemmologist (FGA), and that the given conclusion is based on thorough gemmological research .

If you own or encountered one of our certificates or reports - for example at an auction - you are welcome to send us an email so we may authenticate it for you.

In that case, please email us the number and date of the certificate or report to: certificates[at]secat.nl