A diamond stands for valuable and sustainable. Rightly so, as this unique natural product takes millions of years to develop under immense heat and pressure. A diamond is crystallized carbon, the hardest substance known to man. After polishing a diamond is of unparalleled beauty. After processing the value of diamonds is determined by the combination of the four C's; Carat (weight), Colour, Clarity (purity) and Cut. Most famous is the brilliant cut that consist of 57 facets. Beside this there are many more cuts, such as the GASSAN 121®.