Madhaimondi agara achidiwa nevanhu vazhinji, vanhu vanowanzotenga madhaimondi sezvipo zvepazororo ivo kana vamwe, pamwe chete nekuchata, nezvimwewo, asi kune marudzi mazhinji emadhaimondi, mutengo haufanani, usati watenga dhaimondi. , unofanira kunzwisisa marudzi emadhaimani.
Kutanga, maererano nekuumbwa kwekuparadzanisa
1. Madhaimani akaumbwa nenzira yomuzvarirwo
Madhaimondi anodhura zvakanyanya pamusika anowanzo kuumbwa necrystallization nekufamba kwenguva munzvimbo ine tembiricha yakanyanya uye kudzvanywa (kazhinji kushaikwa kweokisijeni), uye madhaimondi ekare anowanikwa ane makore 4.5 bhiriyoni. Rudzi urwu rwedhaimani rwakanyanya kukosha nekuti haawanzowanikwi.
2. Madhaimani ekugadzira
Nekuvandudzwa kwesainzi uye tekinoroji, kune akawanda madhaimondi ekugadzira pamusika, uye vanhu vazhinji vanogona kugadzira madhaimani ekutevedzera kuburikidza negirazi, spinel, zircon, strontium titanate uye zvimwe zvinhu, uye kukosha kwemadhaimani akadaro kunowanzo kuderera. Asi zvakakosha kucherechedza kuti mamwe emadhaimani aya ekugadzira ari nani kutarisa kupfuura madhaimondi akaumbwa.
Chechipiri, maererano nedhaimondi 4C giredhi
1. Kurema
Maererano nehuremu hwedhaimondi, kurema kwedhaimondi kunotowedzera kukosha. Chiyero chinoshandiswa kuyera huremu hwedhaimondi icarat (ct), uye carat imwe yakaenzana nemagiramu maviri. Zvatinowanzodaidza kuti 10 mapoinzi uye makumi matatu mapoinzi ndeyekuti 1 karati yakakamurwa kuita zvikamu zana, imwe neimwe iine poindi imwe, kureva kuti, gumi mapoinzi 0.1 carats, 30 mapoinzi 0.3 carats, zvichingodaro.
2. Ruvara
Madhaimondi akapatsanurwa nemuvara, zvinoreva kudzika kweruvara kwete rudzi rweruvara rwuri pazasi. Zvinoenderana nekudzika kweruvara rwedhaimondi kuti uone rudzi rwedhaimondi, padhuze dhaimondi harina ruvara, rinowedzera kuunganidzwa. Kubva pamadhaimani egiredhi reD kusvika kuZ madhaimani ari kusviba nekusviba, DF haina ruvara, GJ inenge isina ruvara, uye madhaimani eK-giredhi anorasikirwa nekukosheswa kwawo.
3. Kujeka
Madhaimondi anopatsanurwa nekujeka, kunova ndiko kuchena kwakaita dhaimondi. Kuchena kwedhaimondi kunogona kucherechedzwa pasi pemakorosikopu gumi, uye zvakanyanya kana zvakanyanya kuoneka zvikanganiso, zvikwambo, nezvimwewo, zvinoderedza kukosha, uye zvinopesana. Zvinoenderana nekujeka kwemadhaimani makuru akakamurwa kuita 6 marudzi, zvichiteerana FL, IF, VVS, VS, S, I.
4. Cheka
Kamura dhaimondi kubva pakucheka, zviri nani kucheka, zvakanyanya dhaimondi rinogona kuratidza mwenje kuti uwane chikamu chakakwana. Maumbirwo akajairika edhaimani akachekwa mwoyo, sikweya, ovhari, denderedzwa uye piro. Panyaya iyi, madhaimani akakamurwa kuva marudzi mashanu: EX, VG, G, FAIR uye POOR.
Chechitatu, maererano nekuparadzaniswa kwemavara edhaimondi
1, Dhaimondi risina ruvara
Madhaimondi asina ruvara anoreva rudzi rwehusina ruvara, husina ruvara kana nerunyerekupe rwedhaimondi reyero, uye kupatsanurwa kwemadhaimondi asina ruvara ndiwo ataurwa pamusoro apa zvinoenderana nekudzika kweruvara rwekupatsanura.
2. Madhaimani ane mavara
Chikonzero chekuumbwa kwemadhaimondi ane mavara ndechekuti kuchinja kusinganzwisisike mukati medhaimondi kunotungamirira kune ruvara rwedhaimondi, uye maererano nemuvara wakasiyana wedhaimondi, dhaimondi rakakamurwa kuita marudzi mashanu. Panyaya yemutengo, yakakamurwa kuita madhaimondi matsvuku, madhaimondi ebhuruu, madhaimondi egirinhi, madhaimani eyero uye madhaimondi matema (kunze kwemadhaimondi akakosha).
Nguva yekutumira: May-16-2024