Report No & Photo
The SSEF report number is the number given to the jade item when it is submitted for testing, and is a unique number. If an item is resubmitted later for a ‚recheck‘ after re-cutting or for a report update then the item obtains a new report number.
The photo of a jadeite-jade piece depicts the gem at the time of testing. The photo on an SSEF report is for representational purposes and does not necessarily represent actual colour, clarity or size. For size comparison purposes, approx. magnification used is provided under the photo on the report.
Weight of a jadeite-jade piece in carats, measured and stated with 3 digits. In the case of mounted jewellery, total weight corresponds to total weight of jewellery item(s) and is stated in grams.
Shape & Cut
The shape and cut describe the outlining shape and cutting style of an examined gemstone. For jewellery items with several stones, if these vary, a range of shapes and cuts may be stated.
The measurements are given at 2 decimal places. They generally represent length x width x height of a gemstone. For series of gemstones or gemstones in jewellery, a range of measurements may be stated on the report.
The colour description of jadeite-jade on an SSEF report describes the colour hue (such as green, light green, white, brown, light purple) of the examined item(s). In case of inhomogeneous colour, the range of colours is stated.
Jadeite-jade is generally transluscent. Transparency grading at SSEF follows the following scale:
If the studied gemstone is found to be jadeite-jade it would be stated in the Identification section as ‘Jadeite-jade’. When found to be nephrite-jade, ‘Nephrite-jade’ would be stated in the Identification section of a SSEF report.
Jadeite-jade is commonly treated, either through impregnation and/or dying. As such treatment disclosure follows the following guidelines:
- No indications of impregnation. This jadeite-jade may also be called ‘jadeite-jade type A’ in the trade.
- Impregnated with wax/oil/artificial resin. This jadeite-jade may also be called ‘jadeite-jade type B’ in the trade.
- Dyed. This jadeite-jade may also be called ‘jadeite-jade type C’ in the trade.
- Dyed and impregnated with wax/oil/artificial resin. This jadeite-jade may also be called ‘jadeite-jade type B+C’ in the trade.
If the material corresponds to the latter two cases, then it would be disclosed as ‘Treated jadeite-jade’.
Origin determination is an expert opinion. At SSEF origin determination relies on the analysis of microscopic features, trace element concentrations, and spectroscopic data of a coloured gemstone. The measured data pertaining to a specific client stone is then compared with our extensive reference collection and database of coloured gemstones of known origin, and scientific gemmological literature.
Report date & verification
The date corresponds to the date on which gemmological testing of the item was concluded. SSEF reports can be verified on www.myssef.ch