You may have wondered exactly how diamonds get their shape and distinctive twinkle. They aren’t plucked from the ground in a pristine state only requiring a simple dusting off! All quality diamonds undergo some treatment, although they are largely what nature made them. The cut is the only thing that man tries to control, but this can be a vital element of any diamond.
A craftsman has to sculpt the diamond just right so that it interacts with light well. The most prized diamonds are those that perfectly refract light around their interiors before it emerges back in the same direction it came. This is why the effect of a twinkling diamond is so eye-catching. Diamond jewellers will typically be well versed in choosing the best cut diamonds.
One of the most well known uncut diamonds is called the Oppenheimer Diamond. It weighs a staggering 253.7 carats and is one of the purest diamonds in the world. Obviously, most diamonds are much smaller and require a cutting technique to bring out the best in them. However, if the Oppenheimer diamond was cut professionally, its price would be astronomical.
Quality diamonds with a great cut will also create an effect known as ‘fire’. This is where normal ‘white light’ is split into its constituent rainbow spectrum which can be observed in some well cut diamonds. This can be one of the most memorable elements of a diamond and is a vital part of its light performance. Diamonds also twinkle when they, or the viewer, moves. This effect is known as scintillation. An awesome amount of detail and attention has to go into the cut of the diamond to bring all of these features to the fore. This really makes the most of the diamond and can increase or decrease the price of the diamond significantly.
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