Thenga iidayimani ze-hpht kwilebhu ekhulile iidayimani ezi-1
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+ |
Umgangatho we-4C welebhu ekhuliswe idayimani
Umbala
Umbala wedayimani kwiLab ukhuliswe ngokwemigangatho kwindawo yokujonga esemgangathweni.Izazi zeGemologists zihlalutya umbala kuluhlu lwemibala ku-D ukuya ku-Z kunye nedayimani ebekwe phezulu, ijongwe ngecala, ukuququzelela umbono ongathathi hlangothi.
Ukucaca
Ukucaciswa kwamabanga ngokwemigangatho eyamkelekileyo kumazwe ngamazwe kwi-10X yokukhulisa, ngokuhambelana nokubonakala, ubungakanani, inani, indawo kunye nohlobo lweempawu zangaphakathi kunye nomphezulu kweso sandiso.
Sika
Iingcali zeGemologists ngokubanzi, imilinganiselo kunye ne-facet angles zithelekiswa nophononongo lokuqaqamba, umlilo, ukukhazimla kunye nepateni ukumisela iBanga lokuSika.
Ubunzima beCarat
Inqanaba lokuqala lokuhlelwa kwedayimani kwilebhu kumlinganiselo wedayimani.Ubunzima beCarat yiyunithi yobunzima obuqhelekileyo bamatye anqabileyo.Ukuhlelwa kwedayimani kukwiindawo ezimbini zedesimali ukuqinisekisa ukuchaneka.
