A complete analysis highlighting your gems or jewellery and their identity: the naturality of the stone, the cut, the colour, the treatment and also the geographical origin when possible (available for category A stones - refer to our price list).
The Laboratoire Français de Gemmologie gives a unique number to each deposit. This number identifies the object at each stage of analysis. When a stone has already been viewed and reexamined following a recut or a preliminary examination, it is given a new number.
The date corresponds to the end of the analyses and the day on which the report is published.
The object specifies whether we have received a single stone, a batch or a jewel, and the type of jewel.
The shape, cut and dimensions describe the external appearance of the stone. When you deposit a jewel with several stones, or batches, we note the diametrical variation of the batch.
The shape, size and dimensions describe the external appearance of the stone. When you deposit a jewel with several stones, or batches, we note the diametrical variation of the batch.
The weight of the stones is indicated in carats (1ct = 0.2 g) to two decimal places.
Rounding is done according to the 3rd decimal place: if it is less than 9 then no rounding, if it is equal to 9 then round up. For example: 0.9990 ct is 1.00 carat but 0.9989 ct is 0.99 carat.
In the case of jewellery set with stones, it is weighed in grams to two decimal places. The rounding rule that applies is the arithmetic rounding.
The colour gives an indication of the hue (here: blue), the shade if necessary (e.g. slightly green) and the saturation (here: vivid).
Scientific instruments used
SAPHIRRE (NATURAL CORUNDUM)
NTE - No indication of thermal enhancement
The geographical origin indicated is an opinion of the Laboratory based on gemmological data (spectra, chemistry, inclusions).
Sri Lanka (Ceylon)
The colour and dimensions of the object analysed are approximate.
None