Diamond, the invincible mineral

The diamond is a mineral made of carbon. Etymologically, diamond means “invincible”, which is not surprising given its hardness. Its physical properties are amongst the highest of all the gemstones used in jewellery.

The characteristics of a diamond are defined by 4C:

    • Cut  
    • The cut refers to the angles and the proportions of a diamond. This is a determining factor as a well cut diamond will intensely sparkle.
    • Carat
    • The weight of a diamond is defined in carat. Despite the fact that the diamond carat weight is important, Maison Bachet will require more than just an “ideal cut” diamond, a perfect clarity and colour are primordial.
    • Clarity
    • International standards have established that a diamond is defined as ‘flawless’ when no inclusions or blemishes are visible to a skilled grader using 10x magnification. A diamond clarity scale has been established by the GIA (Gemmological Institute of America) in order to classify the diamond according to its degree of clarity, the scale includes the following degrees of clarity from the best one to the lowest one: FL, IF, VVS1, VVS2, VS1, VS2, SI1, SI2, SI3, P1, P2, P3.
        • Maison Bachet only works with diamonds from FL to VS2.
          • Colour
          • Diamond colour charts are used in order to classify diamonds. The diamond colour considerably impacts its value. The GIA grades diamonds on a scale of D (colourless) through Z (light colour).
            • Maison Bachet only works with D, E, and F diamonds, defined as colourless.

Maison Bachet has a document for each diamond starting from 0.30 carat which is a GIA report including an evaluation of the 4Cs - with a diamond clarity plotting diagram and a graphic representation of the diamond's actual proportions.(spécimen)

There is another excellence criterion established by the GIA, the “Triple Ex”: Maison Bachet collection diamonds are FVS quality diamonds ‘Triple Ex’. This means that the cut grade, the polish and the symmetry are characteristics that are graded excellent on the report.

The black diamond, used for the Maison Bachet’s creations, is a natural brown or grey diamonds, treated in order to obtain its deep black colour. The reason why the Maison does not use natural black diamond when associated to the white diamond is because it is not uniform, it has a greyish appearance and it is impossible to find twice the same natural black diamond due to its natural inclusions. It is the intensity of the black that gives the white diamond this unique sparkle.

The cut quality as well as the surface conditions define the selection of the diamonds. When those two criteria are respected, the colour homogeneity is guaranteed. In order to define the quality of treated diamonds like those of Maison Bachet, we use the grades A, AA and AAA. The AAA is the best quality for a treated black diamond whereas A is the lowest one. Maison Bachet only works with diamonds of quality AAA.