彩色宝石、钻石和珍珠检测的世界领导者
您的宝石让我们为您检测
- 快速运输和安全的门到门交付
- 在曼谷、香港和美国进行现场鉴定
- 简单的订单和安全的信用卡支付方式
- SSEF鉴定报告*
*验证您的SSEF鉴定报告并下载副本：www.myssef.ch
成为宝石专家
自2001 年成功开课以来，SSEF 的教育部门已经为来自工业、贸易以及学术界的数千名学生提供了各类宝石学课程。了解我们的课程
- SSEF提供的免费中文在线课程。
- 高级课程（英文授课）
- 团队量身定制课程
SSEF的免费在线课程
了解宝石
通过这些介绍性的在线课程，开始你成为一个宝石专家的旅程。
Winza ruby with hollow tube as a helix
In late 2007, a new deposit of rubies was discovered near the village of Winza in central Tanzania, creating quite a stir in the trade due to the quality and vivid colour of these rubies.
Eclogitic orange-yellow diamonds coloured by the 480 nm band
We recently acquired three orange-yellow diamonds for the SSEF collection research. These diamonds immediately retained our attention when we did the UV-vis-NIR spectra to identify the defect at the origin of their colour.
Old cultured pearl necklaces
Recently, the SSEF received three pearl necklaces for testing. Each necklace had a clasp containing diamonds and what appeared to be a sapphire. The pearls were graduated in size, with a small knot separating each one.
Fissure filling in spinel
The practice of filling fissures with a colourless substance, such as oil, wax or artificial resin, has been common in the gemstone trade for many decades, if not centuries.