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wholesale jewelry from africa Introduction of diamond -shaped types:
(1) Sharving
Point cut (Point Cut) is the earliest grinding shape of diamonds, which appeared in the 14th century. It is limited to the eight crystal surface of the octagonal body smoothly. Because the eight -sided decentness itself cannot be grinded, the grinding surface has a small corner with the octagonal surface. The purpose of grinding is to improve symmetry and obtain transparent diamonds.
(2) Desk -shaped type
Table cut (Table Cut) appeared in the early 15th century. It just simply grinds off the top of the octagonal body, so that the four natural tilted edges of the crown are formed, and then it has evolved into a small -faced small -faced type.
(3) Roses shall be carved
The rosy types began to appear in the 15th century. It is a small triangular surface with a small triangle on the top. This kind of carving quality is small and the appearance is more beautiful. It is very suitable for the flat crystal system to form a rose -shaped type. The disadvantage is that the fire color is insufficient. Nevertheless, roses have been popular for decades, and some famous diamonds in the world are this kind of cargo.
(4) Single multi -faceted type
Single cut (Single Cut) is an excessive cargo of desktop carving type to round multi -faceted type. Eight Cut, but the appearance is not round. It is an oblique table -shaped shape that is grinded by the four horns.
(five) Double multi -faceted type
du Ble Cut (Dou BLE CUT) is transformed from a single multi -faceted shape. As a result, it is also called Mazarin. Its shape looks like a cushion, with a total of 34 small noodles, of which 16 are in the crown, 16 are in the pavilion, and one countertop and 1 bottom.
(6) Tri -faced multi -faceted type
The trio cut is designed by Ruzzi, a diamond grinding craftsman of Venice, and he increased the number of small noodles. By 58, including tables and bottoms. This increases the brightness and fire of diamonds, but the form is still irregular.
(7) Classical European Cutchers
Classical European Following Type (Figure 5-34) is the result of further improvement of the above -mentioned cargo. Has a more round shape. This type of carving is closer to the modern round multi -facial shape in shape and style.
(8) Modern round multi -moment -shaped face -shaped -shaped world different regions of different regions of the world have representative modern round multi -engraving types of "ideal" proportion of "ideal".
(nine) Fancar type
Fancy Cut began to appear in the 15th century, which refers to any modern diamond -shaped type of non -round multi -faceted type. It is estimated that only about 10%to 20%of diamond rough is processed into this type. This is mainly because the final form is largely dependent on the original rough form. Another factor is that the production cost of fancy -type is high. Only a few experienced crushing artisans can make it, and it is a very time -speaking job. Therefore, manufacturers are often reluctant to produce this kind of cargo.
has a lot of style of fancy, and basically divided into two groups according to their own characteristics: each group requires different processes and different diamond rough stones.
(ten) Strange type of biological
The main performance of the designer's creativity is not subject to any standards. It can cut into some strange shapes such as animals and plants according to the diversification of rough shapes, such as horses, sheep, fish, cross, crescent, pentagonal, Guanyin, etc.