Like pearls, diamonds are a gift of Nature – tiny in size, but powerful beyond measure. Diamonds has a unique place in the history of our civilisation. As a dazzling fragment of eternity, the diamond has shone its divine light through millennia, continuously fascinating people with its beauty, mystique and power.


No two diamonds are alike. Diamonds were formed deep below the earth’s crust millions and billions of years ago, under the most extreme conditions. For the same reason, diamonds are considered the most rare and precious of all gemstones.


When cutting a diamond, magic happens – and it is also the only stage of the process where mankind exerts any power over diamonds. Everything else is determined by Nature itself.

 Carat weight

The weight of a diamond is measured in carats. One carat equals 0,20 grams.


The colour of diamonds is graded on a scale from the letter D (colourless) to Z (light yellow or brown).


The diamonds set on Rosing jewels are all hand-selected, and only the very best make it through our selection process. We place our trust in diamonds certified by the HRD (Hoge Raad voor Diamant) and the GIA (Gemological Institute of America) for the Shooting Star and the Solitaire collections.


The colour, clarity and size of diamonds are predetermined by Nature. Only the cut depends on the talent and expertise of a diamond-cutter. For the very same reason, the cut of a diamond is a crucial quality factor in the four C’s grading system. Exemplary cutting of a rough diamond can turn the gemstone into an exceptional masterpiece.


A perfectly cut diamond needs to fulfil certain criteria, such as symmetry, proportions, overall height and table size. Diamonds, which are not brilliant cut, are known as ”fancy cuts” – baquette, princess cut, heart cut, cushion cut, pear cut and several more.


Inclusions are natural imperfections in a diamond, which can affect the diamonds clarity when it is cut. The number, size, colour, relative location, orientation, and visibility of inclusions can all affect the relative clarity of a diamond. Diamonds are graded for clarity under 10 x loupe magnification from FL (flawless) to I3 / P3 (included, numerous inclusions visible to the naked eye).


As gemstones originating in Nature, few diamonds attain the grade of flawless.

The Love Diamonds

Hearts & Arrows and Rosing


Only the best quality and most beautiful diamonds are selected to become love diamonds.


A number of Rosing rings are set with a brilliant-cut diamond with the “Hearts & Arrows” cut, where, if you look closely, you can discern eight hearts and eight arrows in the gemstone.