with your mouse to see the details. 
Date
- This usually corresponds to the date of the analysis. In the case of a duplicate report, this date reflects when it was issued, not the date of testing.
ID Number
- This is the identification number of your report. When communicating with us on an existing report, we need this number to track down its details.
Laser Inscription Registry
- soon
Shape and Cutting Style
- Cut: The cut of a diamond describes its shape and style:
Shape: diamonds are most commonly cut into round, oval, octagonal and heart shapes. There is a wide variety of standard shapes, each of which may also be modified to the extent that they can become fancy shapes.
Style: the style describes the cut. For example, the term “brilliant cut”, the most common diamond cut, consists of 58 facets – 33 on the crown (above the girdle) and 25 on the pavilion (below the girdle).
Measurements
- A micrometer is used to measure accurately the dimensions of a diamond. The measurement unit we use is millimetres; each measurement is given to two decimal places.
Carat Weight
- In order to ascertain the exact weight of a gemstone or item of jewellery, we use a highly accurate scale. The unit of measurement used for the weight of a gemstone is a carat. One carat is equal to one fifth of a gram, i.e. 0.2 grams. The measurement in carats is given to two decimal places.
Color Grade - Colourless Diamond
- Altough most diamonds appear colourless to naked eyes an expert can distinguish the minimal nuances of colour that determine the value of a stone from colorless white to yellow or brown color.
- D exceptional white +
- E colourless exceptional white river
- F rare white +
- G rare white top wesselton
- H near colourless white wesselton
- I slightly tinted white top crystal
- J slightly tinted white crystal
- K faint yellow tinted white
- L tinted white top cape
- M - R very light yellow M tinted to R tinted cape
- S - Z light yellow S tinted to Z tinted
Clarity Grade
- The clarity grade describes the number of inclusions within a diamond. ‘Internally flawless’, for example, is used to describe a diamond in which no internal features can be recognised at 10x magnification. The following clarity grades are used:
- FL flawless
- IF internally flawless
- VVS 1 - VVS 2 very, very small inclusions
- VS 1 - VS 2 very small inclusions
- SI 1 – SI 2 small inclusions
- I 1 small inclusions visible to the trained eye
- I 2 – I 3 small inclusions visible to the naked eye
Cut Grade
- soon
Polish
- The term ‘polish’ refers to the presence of polishing lines that appear on the surface of a finished diamond with the use of 10x magnification. Polish is graded on a scale from excellent to poor.
Symmetry
- The term ‘symmetry’ considers the evenness of a diamond’s outline and the size, shape and placement of its facets with the use of 10x magnification. Symmetry is graded on a scale from excellent to poor.
Fluorescence
- Some diamonds will fluoresce under ultraviolet light, i.e. emit a light activated by UV radiation. This is one characteristic which helps identify an authentic diamond. The strength of fluorescence ranges from weak, faint, moderate, strong to very strong. The fluorescence colour can be blue, white, red or yellow.
Comments
- Here we describe other identifying characteristics of the diamond that was not mentioned otherwise in the report. This is where we report on whether the colour of a fancy colour diamond is natural or treated.