| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To diversify the value of a diamond from the standpoint that one keeps a diamond carefully for a long period of time and usually wears it without hiding it in a safe. <P>SOLUTION: A certificate 10 certifying the identity of a crude diamond is attached to each of a plurality of diamonds obtained by dividing the crude diamond, and each diamond 1 is given an ID 2. The diamonds each are identified with the ID in the certificate. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
