Diamond is by what the mankind says " lapidary king " , make the highest lapidary variety, outside be being concerned except the quality that has charm with diamond itself, still wait with the exploration of diamond bed, treatment having close relationship.
1. The immanent glamour character with inherent diamond
As gem, must have beautiful, fast and exiguous element of this 3 gist. Diamond is exclusive a kind of part is top hardness, strong refractive index and tall chromatic dispersion the lapidary breed at an organic whole, any other gem breed cannot are likened to. Such Bao Zhongzhi treasure, rare medium rarely, manage place ought to the ground is become expensive medium most.
2. Diamond culture is of long standing and well established
From of old, what diamond is regarded as influence, august, position and riches and honour by the mankind all the time is indicative. The character of eternity of its indestructible, all-conquering, faithful and firm and persistent Yang Gang, it is the objective that the mankind pursues forever. It is had potential, enormous culture value.
3. Diamond bed seeks hardship, the cost is huge
Of diamond bed search, in resembling fokelore in that way, fall not carefully to be handed in can discover field of a diamond. Of diamond bed seek often should spend on a few years, mix to effort of about a hundred years very labor, the cost is huge. Seek like what former Russia Siberia lays diamond field formerly, begin from 1913, all previous classics hardships of 18 years, ability is able to discover; Of Botswana " Ou La " former unripe bed, cost 32 million dollar, all previous comes out via struggling ability mining of 12 years; In last few years, the diamond that discovers in Canadian northwest ministry lays field formerly, it is the tough effort that experienced a few acting rocksy, the cost amounts to a few dollars to just be found at least.
4. Diamond bed amount is little, grade of bed of lapidary class diamond is low
The amount of world diamond bed, if be compared with iron, copper and photograph of golden mine amount, can saying is so little that have pity on, can be counted on one's fingers. In the diamond that goes out in exploitation, on average only 20 ％ reach lapidary level, and 80 ％ can use the rest at industry only. But the value of diamond of lapidary class of this 20 ％ is equivalent to diamond of 80 ％ industry however of 5 times. World diamond produces per year a quantity to be 100 million carat about, lapidary class is 15 million carat about, and the agreement that machines diamond is 4 million carat (be equivalent to 800 kilogram) .
Rough statistic discovers somebody, should get 1 carat (0.2 grams) already the diamond with good burnish, need digs about 250 tons of ore.
5. The dimensions huge of exploitation, difficulty is extremely tall
The exploitation of diamond bed, can saying is a dimensions tremendous, however attentive to the utmost the job. In exploitation process, need sufficient exploitation to contain the ore of diamond already, want again overcautious, in order to ensure grain of original rock of the diamond in ore is in good condition nondestructive. Extract undeserved meeting causes huge loss of economy. It is opencast working no matter, still be subterranean mining, it is the project of an impetus and occasion huge, the investment of manpower material resources is adv unimaginably.
6. Diamond machine program is complex, man-hour amount is large
The ore classics that goes out to exploitation is elaborate and broken and grading hind, do not resemble other metal bed same, can throw the smelt of large quantities of quantities, should undertake chasing an elaborate and careful analysis to each diamond semifinished product however, ability decides next cutting to grind plan, in order to ensure its weight, clean spend and design. This often needs optical to diamond itself physics property to the personnel with sufficient understanding, quite rich experience will undertake. Common step is: ① designs graticule; ⑧ is broken off auger; ⑧ curiums auger; ④ car is gotten; ⑤ is ground auger; ⑥ is cleaned classification. And still included in this each measure lots and lots of small order. Each half step needs masterly engineering technology and rich experience. Take the world most for the diamond austral library benefit, original rock weighs 3106 carat, the craftsman with 3 seasoned, preeminent craft, work 14 hours everyday, cost 8 months in all, just break up it 4 to be gotten greatly with 101 bradawl. Have the treatment of some of world-renowned diamond, often design only should spend a few months, even 1, time of 2 years.
7. In consumer hand, the experience of a diamond is various
According to somebody preliminary count, a diamond, the exploitation from it, grading, treatment, classification, sale, in selling purchaser the hand finally, involve 200 much people about, one plunges drop is natural god and the crystallization of blood of 200 much popular feeling, of diamond extremely precious namely amid.
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