The Main Source of the cufflinks

 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.  The Main Source of the cufflinks
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.