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Gem-cutting

One of the important aspects in the assessment of a gemstone is to learn to look at the stone, even if you are not a gemologist. Let's start with the terminology and understanding of what is behind the words, especially those that characterize the gem-cutting.

If it is a cut stone, it is important to know a certain number of terms used in this field. Elements of stone vary in their proportions, and it affects respectively brilliance, appearance and attractiveness.

Girdle - is the edge or tip of the stone, which forms its perimeter. This is the end, where upper and lower parts of the stone interlock, that is, in fact, a kind of dividing line. It is the place where usually the frame is fixed.

Crown. Crown is called the top of the stone, located above the girdle.

Pavilion - this is the lower part of the stone, in other words, the part of the stone, which is below the girdle down to the bottom point.
Culet. Culet  is the lowest point in the stone. At number of stones you can not see it, which probably indicates a possible defect, but in regard to colored stones, it can be due to plan of cutting.

Table. This is a flat upper face of a stone, and its biggest edge, sometimes called “front face”. The term "size of the table" is used to describe the width of this face, which is often expressed as a percentage of the total width of the stone.

Gem cutting

The most important and also the easiest to understand factor which must be considered when assessing the stone is cutting. When it comes to cutting, we do not mean the shape of the stone. We are talking about the quality and thoroughness of the processing of raw materials. Finished products have a variety of shapes, which are popular with customers. External shape influences the overall attractiveness of the stone, but with the qualitative cutting it is not critical. For an average consumer the shape of a stone is just a matter of personal taste. The most popular cuts are shown in the figures below.


Round

Round side view

Triangle

Pear-shaped

Marquis


Oval


Emerald


Rodiant


Heart


Baguette
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