CUTTING

The cutting of diamonds into the complex faceted forms we now associate with these gems is actually a relatively recent practice. For centuries, rough diamonds were kept as talismans, and often not worn at all, though natural octahedral (eight-sided stones) were sometimes set in rings. A Hungarian queen's crown set with uncut diamonds, dating from approximately l074, is perhaps the earliest example of diamond jewelry. We know that the royalty of France and England wore diamonds by the 1300's. In sixteenth century England, fashionable lovers etched romantic pledges on window-panes with the points of their diamond rings, known as "scribbling rings".
The earliest record of diamond-polishing (with diamond powder) is Indian, and probably dates from the fourteenth century. There are also contemporary references to the practice of diamond polishing in Venice. The earliest reference to diamond cutting is in l550 in Antwerp, the most important diamond center of the period, where a diamond-cutters' guild was soon to be established.
Diamond Routes and Centers:
Indian diamonds reached Venice by two Mediterranean routes: the southern route was by way of Aden, Ethiopia, and Egypt, and the northern route was through Arabia, Persia, Armenia, and Turkey. Then, thanks to the Portuguese discovery of the direct sea route to India, Antwerp flourished as a diamond center, as the city was well-situated to receive vast supplies of rough from Lisbon as well as from Venice.
After Spanish attacks on Antwerp in1585, many diamond cutters relocated to Amsterdam. And the Netherlands, with its liberal civil policies, attracted diamond craftsmen (including many Jews) who were fleeing religious persecution in Spain, Portugal, Germany and Poland.
In the late1600's, as the English fortified their interest in India, which was still the world's central diamond source, London became an important cutting center. Later, London became the primary world market of diamond rough.
Today, there are cutting centers all over the world, most notably in Belgium, India, Israel, South Africa, and the USA.