彩色寶石、鑽石和珍珠檢測的世界領導者
您的寶石讓我們為您檢測
- 快速運輸和安全的門到門交付
- 在曼谷、香港和美國進行現場鑒定
- 簡單的訂單和安全的信用卡支付方式
- SSEF鑒定報告*
*驗證您的SSEF鑒定報告並下載副本： www.myssef.ch
成為寶石專家
自2001年成功開課以來，SSEF瑞士珠寶研究院教育部門對數以千計來自產業、經貿以及學術界的學員提供了特別企劃的專業寶石學課程。
瞭解我們的課程
- SSEF提供的免費中文在線課程。
- 高級課程（英文授課）
- 團隊量身定制課程
SSEF 提供的免費在線課程
了解寶石
通過這些介紹性在線課程開始您成為 gem 4expert 的旅程。
Low-temperature heating of corundum: possibilities and challenges for detection
Heat treatment is generally applied to gemstones to change and enhance their colour. Over the past few decades, it has become a very common practice for certain gem species, such as aquamarine, amethyst (resulting in citrine), copper-bearing tourmalines (Paraiba), tanzanite, and notably for any colour variety of corundum.
Unravelling the secrets of antique jewellery
Testing of antique jewellery at SSEF may provide insights which go far beyond simple gem testing. They add valuable information to the jewel, starting from its design and craftsmanship in the making, the choice of colours and qualities of gemstones, or the facet arrangement and proportions of old cutting styles.
Vanadium chrysoberyl
Vanadium as a colouring element is quite often underestimated, mostly as it is often associated and acting together with chromium, a chemical element with a similar geochemical behavior and paragenetic occurrence but which is historically better known in the trade and easier to detect with simple tools (spectroscope) by gemmologists.
The colour range of Paraiba tourmalines
Paraiba tourmalines owe their attractive colour to the presence of copper. In the best case, this gives rise to a vivid blue colour, also known in the trade as ‘neon’ blue or ‘electric’ blue and not known from any other gemstone in nature.