1. What is splitting and sawing?
This first step involves carving a groove into the stone to split it in two. The aim is to adapt the mineral to a shape suitable for sawing, as well as cutting at a later stage. This also allows for errors formed during the creation process, such as inclusions and black spots, to be removed. The eventual shape of the diamond is now already becoming evident.
2. What does bruting mean?
During the bruting process all the individual pieces of rough diamond which are left behind after splitting are made rounder. This will give them a more accessible shape for faceting. This process is done mechanically.
3. What is the point of faceting?
Faceting requires the most craftsmanship and is also the most important phase for the quality of the eventual loose diamond. Various different highly specialised professionals will take responsibility for this part of the phase. The facets are all applied manually, even though automated insights are sometimes used to get as much diamond out of the rough stone as possible.
These automated insights visualise the different steps. They take inclusions into account, as well as the maximum possible dimensions in order to minimise the loss.
4. What does brightening mean?
This is the final step in the cutting of the actual stone, but not of the entire process. Brightening is also known as polishing and aims to do as much justice as possible to the specialists’ facet work. Each facet is therefore individually polished in order to realise the best possible shine.
5. What will the inspection be looking for?
The final step in the cutting process is the inspection. Diamond specialists check the diamonds and make sure they do not end up on the market if the cut does not satisfy the standard quality expectations. What if the stone was not cut properly? Then it will go back through the faceting and polishing process until the right quality has been achieved for the stone to be considered for jewellery and as an investment diamond.
How can I invest in beautiful loose diamonds? Which quality diamond will suit my investment portfolio best? Ask BNT Diamonds’ diamond experts for advice.