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...
During BaselWorld 2018 (22 - 27 March), SSEF will be offering its convenient gemstone and pearl testing services. You can find us in the first floor of Hall 3 at booth No. 3.0/ E23, at a different location than in past years. The phone number at...
Padparadscha-like fancy sapphires with unstable colours from Madagascar. Fancy sapphires recently found in Madagascar showing an unstable colour, shifting from pinkish orange (padparadscha-like) to pink after a fading test are reported. Read Report (PDF)...
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...
We very recently came across a series of fine Burmese rubies (Mogok-type), which were treated with artificial resin (polymer-type) to modify the clarity of these fissured stones. Given that this is not a common treatment for rubies, we want to inform clients of the possibility...
We will be in Hong Kong 22 February - 05 March offering our on-site testing services, during the September Hong Kong Jewellery and Gem Fairs. Equipped with our mobile instruments and spectrometers, we will be certifying coloured gemstones at the Asia World Expo (27 February...
We will be in Hong Kong 08 - 19 September 2017 offering our on-site testing services, during the September Hong Kong Jewellery and Gem Fairs. Equipped with our mobile instruments and spectrometers, we will be certifying coloured gemstones at the Asia World Expo (13 -...
This trade alert focuses on those sapphires from this new source in Madagascar which have a ‘Kashmir-like’ visual appearance. They are characterised by a subtle and fine milkiness, which results in a velvety blue colour as is known from top-quality Kashmir sapphires. Unfortunately, many of...
SSEF is introducing to the market a new system for scanning both single and multi-strand pearl necklaces. Called PearlScan®, it is able to count large quantities of pearls on strands and measure their dimensions. Consisting of an A4 scanner, computer and proprietary software, the system...