- The round brilliant cut is one of the most frequently used cuts in diamonds. Round brilliant cut diamonds are considered the classic traditional cut. Many people who purchase diamonds as an investment item will invest in round brilliant cut diamonds.
Diamonds are divided into two halves. The top half is called the crown. It rests above the girdle, which is the center of the diamond. Below the girdle is the pavilion. The first brilliant cut diamonds appeared in the 17th century. They were called Mazarins and they contained 17 facets. Facets refer to a flat portion cut into the diamond. These original brilliant cut diamonds were called double-cut brilliants.
A Venetian man, Vincent Peruzzi, increased the number of facets to 33. These diamonds were called triple-cut brilliants.
The development of the diamond saw in the 1900’s led to the ability to create many more facets than before. Later, mathematical models were derived to determine the very best way to use a brilliant cut on round diamonds.
Today round brilliant cut diamonds have 58 facets. There are 33 facets in the crown and 25 in the pavilion. Modern brilliant diamonds also contain facets on the girdle, sometimes as many as 96. There are many variations of the round brilliant cut including the European cut,the English round cut, and the Victorian cut.
Round brilliant cut diamonds usually are the most expensive per carat weight. They make up a majority of the diamond sales today.
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