The cufflinks is characterized by front-line straight set

 Edge shovel: the gem to stay side (waist) should be clearly visible, uniform thickness, the whole side of a certain edge worn away is the shovel edge, borderless as sharp like a blade. Generally turn the stone is not correct or ring side over the formation. Crooked tip: gem culet should be living in a central location deviation is crooked tip, generally turn the stone is not correct, the formation of edge thick edge thin. The cufflinks is characterized by front-line straight set.
Mongolia: The gem was King Kong, the sub-adamantine luster, all or part of the plate surface is shiny enough, was the mist, gray is Mongolia. Generally because the polish is not good cause. Sand circles: the transfer of line or the board which the board and the board have a line of polished, white line, brown line, that is, sand circles. Caused due polished less than. Sand holes: among the board, dot, black, brown, white, clean and polish not formed, also known as pitting. leaked: gem requirements after again reflected from the crown of the incoming light in the pavilion all from crowns reflected, if the light is refracted out at the pavilion rather than the reflection back from the crown called leaky layman's terms is light in The pavilion miss. Formed because the pavilion angle is too small, the pavilion is not high enough. Counterfeit cufflinks are a small dot in the composition of the lines left.
Black: Principles and leaked, but different manifestations, is because the pavilion angle is too large, the pavilion is too high and the formation of. Thick edge: gem requirements thick edge of 2% of the particle size, in theory, more than 2% is the thick side, but in practice the upper thickness is generally about 2%, save one or two lines side, significantly more than two lines compared with the thick edge. millstone to stay side ring edge improper formation. These cufflinks should be observed with a magnifying glass.  Loss round: Round stone is not round, miscellaneous-shaped stone shape is not standard is the loss of a circle, usually because of the stone blanks good shape or manual light edge improper caused. Do not accept a tip: stone blank is high enough, wear no culet is called to close the tip.
Handover line polishing Mongolia sector: between the board and board is not good, pale line, known as the Mongolian community, a particular manifestation of Mongolia. Caused polishing poor. Sub-board: a board should have been ground into the formation of two or more board called the scoreboard. Generally because of improper operation or equipment accuracy is not high. Extension units: the gem board and board into angular transfer of the toroidal edge is the extension units, also known as drag angle, roll board. Is generally formed due to improper operation. Wiring: gem general requirements between upper and lower levels of board or same laminate surface with the board between the angle and angular phase angle is not connected, hit, or from, compared with wiring, usually because of improper millstone location or efforts to improperly formed. The diamond cufflinks have the unique adamantine luster.Gem jade in the process according to specifications requires the operator or poor stone quality, or poor supporting materials, or equipment accuracy is not high, may lead to product defects, the formation of defects, and even the waste rock, common defects and causes are as follows: Greater Mongolia: lackluster, one white. Less than the formation of no polishing or polishing. Bubbles, impurities: gem internal bubbles, impurities and inclusions, formed during the production of stone. The performance of the formation of split stone: with collapse, crack, rot, etc., generally The millstone improper operation or dickite billet operating improper formation of internal stress leads to crack the case is rare. With a pen dipped in ink streaks across the diamond, a smooth continuous line will be left on the real diamond cufflinks.
 Improper size: gem requirements for particle size, length, width error of no more than 0.05 MM, more than compared to the size, improper, also known as the dimensions are not allowed. Special requirements of an exception, and some general cargo error of less than 0.1MM can.