News

SSEF has conducted an extensive research project to establish more specific criteria to detect low-temperature heat treatment, studying more than 200 unheated and heated rubies (rough and faceted stones) from Mozambique. In combination with close microscopic examination of the samples, specific infrared spectroscopy (FTIR) peak...

We will be in Bangkok 20 - 24 August 2018 offering our on-site testing services. Our office is in the gem trade district at the Silom Road. Equipped with our instruments and spectrometers, we will be testing coloured gemstones. Please contact us to make an appointment. More...

We will be in Bangkok 21 - 25 May 2018 offering our on-site testing services. Our office is in the gem trade district at the Silom Road. Equipped with our instruments and spectrometers, we will be testing coloured gemstones. Please contact us to make an appointment. More...

SSEF is honoured to take part in the upcoming  first edition of the GemGenève show at Palexpo in Geneva. We will be offering coloured gemstone express testing services at our booth B7-1. Further, Dr. Michael S. Krzemnicki will be giving a talk during GemGenève, details of...

The latest edition of SSEF's Facette magazine has been published. It is now also available online as a PDF. This magazine brings you reports of our latest gemmological research and findings, courses and other SSEF activities.Read Facette SSEF Facette No. 24, 2018 featured articles:Padparadscha-like fancy sapphires...