The curved surface , also known as the convex surface type or plain body, its ornamental surface is a convex surface. According to the waist (shape of the waist), it can be further divided into round, olive, heart, rectangular, square, cross, pads, pituitary shape, etc. If according to its cross -section type, it can be divided into five types: single convex surface, dual -convex noodles, lentils, and hollow -up types, and concave surface -oriented types. The aspect type The geometric planes that are completely covered with the surface of the gemstone. Polish it according to the appropriate angle. The gem can display the four optical effects of the body color, brightness, fire color, and shining. Face -to -face type can be divided into diamond -type, step -type cargo, rose -type cargo, shearing (cross) type, and mixed -ending type.
is commonly used in low -end gems and can be used for different jewelry. It can also be divided into types such as round beads, elliptical beads, flat balls, and rectangular beads.
includes two types of freedom and random types, which can express the ever -changing natural form of gems.
The curved surface
, also known as the convex surface type or plain body, its ornamental surface is a convex surface. According to the waist (shape of the waist), it can be further divided into round, olive, heart, rectangular, square, cross, pads, pituitary shape, etc. If according to its cross -section type, it can be divided into five types: single convex surface, dual -convex noodles, lentils, and hollow -up types, and concave surface -oriented types.
The aspect type
The geometric planes that are completely covered with the surface of the gemstone. Polish it according to the appropriate angle. The gem can display the four optical effects of the body color, brightness, fire color, and shining. Face -to -face type can be divided into diamond -type, step -type cargo, rose -type cargo, shearing (cross) type, and mixed -ending type.
is commonly used in low -end gems and can be used for different jewelry. It can also be divided into types such as round beads, elliptical beads, flat balls, and rectangular beads.
includes two types of freedom and random types, which can express the ever -changing natural form of gems.