All those properties for which a gemstone is valued are most pronounced in the processed mineral. Actually, it becomes precious only in faceted form. Cutting operations are quite varied, but they have the same goal - to show the stone in the most advantageous way.
Instructions
Step 1
Cutting a stone is the process of grinding it with planes of various shapes. The resulting planes are called faces or facets. There are two main types of cuts: brilliant and stepped. This is the basis for various types and forms of cuts. Almost all other species are varieties of these two.
Step 2
The oldest way to cut gemstones is smooth grinding. This type of treatment is suitable for almost all types of stones. Smooth grinding is most often applied to low-translucent and opaque stones. This method is for rubies and emeralds, and these are translucent stones, but only if these stones do not contain a large number of inclusions. Smooth grinding means that the stone is supposed to be given a convex shape, without edges.
Step 3
One of the types of smooth grinding is the cabochon. This is the simplest method of cutting that has survived to this day. This type of processing allows you to give the stone a regular convex shape, usually oval or round. A regular cabochon, that is, round, is characterized by the equality of the base radius and height. If the height exceeds the radius, this is called a high cabochon, but if the radius is larger, then the cabochon will be called low or flat.
Step 4
Cutting is also of considerable importance in assessing the quality of a stone, especially for precious gemstones. When determining their quality, the number of edges is indicated, these values are indicated in the evaluation table, and this has an impact on the cost. Complex diamond cuts include: stepped (ladder), star, emerald cut, trap, Ceylon, pulsar, evening star. Basically, these types of cuts are used for large stones.
Step 5
Mixed cutting involves the combination of two types of grinding, this is when the upper part of the stone is smooth, and the lower is faceted, or vice versa. When choosing a stone for yourself, stop at the type of cut within which you yourself live, because it is not for nothing that astrologers have long been studying human characters when choosing jewelry.
