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Igi eqinisekisiweyo ye-hpht lab ekhulile iidayimani VS VVS Ukucaca

Igi eqinisekisiweyo ye-hpht lab ekhulile iidayimani VS VVS Ukucaca

Inkcazelo emfutshane:

iidayimani ezikhuliswe ilebhu ye-hpht, ezidla ngokubizwa ngokuba yilabhu edaliwe, eyenziwe ngumntu, okanye iidayimani zokwenziwa, zenziwe kwindawo yaselabhoratri exelisa inkqubo yendalo yokukhula kwedayimani-kuphela, ethatha ixesha elincinci kakhulu (yithi, iminyaka eyi-3 yeebhiliyoni ngaphantsi , nika okanye thatha) kunye neendleko ezincinci.

Ilabhu ye-hpht ekhuliswe iidayimani ziyi-100% yedayimani yokwenyani, kwaye ibonwa ngamehlo, ngokwekhemikhali nangokwasemzimbeni iyafana nendalo, idayimani ezembiweyo.Imfuno yeedayimani ezikhuliswe kwilabhu ye-hpht inyukile kwiminyaka yakutshanje, njengoko iindlela zobunjineli kunye netekhnoloji ziye zagqibelela ukuvelisa iidayimani ezithi, ngazo zonke iiakhawunti, ezintle, ezinoqoqosho, iidayimani zokwenyani.


Iinkcukacha zeMveliso

Iithegi zeMveliso

Iiparamitha ze-hpht lab ezikhulile iidayimani

Ikhowudi # IBanga Ubunzima beCarat Ukucaca Ubungakanani
04A A 0.2-0.4ct VVS VS 3.0-4.0mm
06A A 0.4-0.6ct VVS VS 4.0-4.5mm
08A A 0.6-0.8ct VVS-SI1 4.0-5.0mm
08B B 0.6-0.8ct SI1-SI2 4.0-5.0mm
08C C 0.6-0.8ct SI2-I1 4.0-5.0mm
08D D 0.6-0.8ct I1-I3 4.0-5.0mm
10A A 0.8-1.0ct VVS-SI1 4.5-5.5mm
10B B 0.8-1.0ct SI1-SI2 4.5-5.5mm
10C C 0.8-1.0ct SI2-I1 4.5-5.5mm
10D D 0.8-1.0ct I1-I3 4.5-5.5mm
15A A 1.0-1.5ct VVS-SI1 5.0-6.0mm
15B B 1.0-1.5ct SI1-SI2 5.0-6.0mm
15C C 1.0-1.5ct SI2-I1 5.0-6.0mm
15D D 1.0-1.5ct I1-I3 5.0-6.0mm
20A A 1.5-2.0ct VVS-SI1 5.5-6.5mm
20B B 1.5-2.0ct SI1-SI2 5.5-6.5mm
20C C 1.5-2.0ct SI2-I1 5.5-6.5mm
20D D 1.5-2.0ct I1-I3 5.5-6.5mm
25A A 2.0-2.5ct VVS-SI1 6.5-7.5mm
25B B 2.0-2.5ct SI1-SI2 6.5-7.5mm
25C C 2.0-2.5ct SI2-I1 6.5-7.5mm
25D D 2.0-2.5ct I1-I3 6.5-7.5mm
30A A 2.5-3.0ct VVS-SI1 7.0-8.0mm
30B B 2.5-3.0ct SI1-SI2 7.0-8.0mm
30C C 2.5-3.0ct SI2-I1 7.0-8.0mm
30D D 2.5-3.0ct I1-I3 7.0-8.0mm
35A A 3.0-3.5ct VVS-SI1 7.0-8.5mm
35B B 3.0-3.5ct SI1-SI2 7.0-8.5mm
35C C 3.0-3.5ct SI2-I1 7.0-8.5mm
35D D 3.0-3.5ct I1-I3 7.0-8.5mm
40A A 3.5-4.0ct VVS-SI1 8.5-9.0mm
40B B 3.5-4.0ct SI1-SI2 8.5-9.0mm
40C C 3.5-4.0ct SI2-I1 8.5-9.0mm
40D D 3.5-4.0ct I1-I3 8.5-9.0mm
50A A 4.0-5.0ct VVS-SI1 7.5-9.5mm
50B B 4.0-5.0ct SI1-SI2 7.5-9.5mm
60A A 5.0-6.0ct VVS-SI1 8.5-10mm
60B B 5.0-6.0ct SI1-SI2 8.5-10mm
70A A 6.0-7.0ct VVS-SI1 9.0-10.5mm
70B B 6.0-7.0ct SI1-SI2 9.0-10.5mm
80A A 7.0-8.0ct VVS-SI1 9.0-11mm
80B B 7.0-8.0ct SI1-SI2 9.0-11mm
80+A A 8.0ct + VVS-SI1 9mm+
80+B B 8.0ct + SI1-SI2 9mm+

4C Umgangatho we-hpht lab ekhuliswe idayimani

I-AVAV (2)

Umbala

Umbala wedayimani ophathwayo we-hpht uhlelwe kwindawo yokujonga esemgangathweni.Iingcali zeGemologists zihlalutya umbala kuluhlu lwemibala ku-D ukuya ku-Z kunye nedayimani ebekwe phezulu, ijongwe ngecala, ukuququzelela umbono ongathathi hlangothi.

I-AVAV (3)

Ukucaca

Ukucaciswa kwamaBanga e-hpht ephathwe ngedayimane ngokwemigangatho eyamkelekileyo kumazwe ngamazwe kwi-10X yokukhulisa, ngokubonakala, ubukhulu, inani, indawo kunye nohlobo lweempawu zangaphakathi kunye nomphezulu kweso sandiso.

I-AVAV (4)

Sika

Iingcali zeGemologists ngokubanzi, imilinganiselo kunye nee-engile ze-facet zithelekiswa nezifundo zokuqaqamba, umlilo, i-scintillation kunye nepateni ukumisela iBanga lokuSika le-hpht ephathwayo yedayimane.

I-AVAV (1)

Ubunzima beCarat

Inqanaba lokuqala kuhlelo lwe-hpht lwedayimani lunobunzima bedayimani.Ubunzima beCarat yiyunithi yobunzima obuqhelekileyo bamatye anqabileyo.Ukuhlelwa kwedayimani kukwiindawo ezimbini zedesimali ukuqinisekisa ukuchaneka.


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