EX-VG hpht ankachitira diamondi mkulu kutentha kwa diamondi
Magawo amphamvu kwambiri kutentha kwa diamondi
| Kodi # | Gulu | Kulemera kwa Carat | Kumveka bwino | Kukula |
| 04 A | A | 0.2-0.4ct | VS VS | 3.0-4.0 mm |
| 06 A | A | 0.4-0.6ct | VS VS | 4.0-4.5 mm |
| 08 A | A | 0.6-0.8ct | Chithunzi cha VVS-SI1 | 4.0-5.0mm |
| 08b ku | B | 0.6-0.8ct | Chithunzi cha SI1-SI2 | 4.0-5.0mm |
| 08c ndi | C | 0.6-0.8ct | SI2-I1 | 4.0-5.0mm |
| 08d pa | D | 0.6-0.8ct | I1-I3 | 4.0-5.0mm |
| 10A | A | 0.8-1.0ct | Chithunzi cha VVS-SI1 | 4.5-5.5 mm |
| 10B | B | 0.8-1.0ct | Chithunzi cha SI1-SI2 | 4.5-5.5 mm |
| 10C | C | 0.8-1.0ct | SI2-I1 | 4.5-5.5 mm |
| 10D | D | 0.8-1.0ct | I1-I3 | 4.5-5.5 mm |
| 15A | A | 1.0-1.5ct | Chithunzi cha VVS-SI1 | 5.0-6.0 mm |
| 15B | B | 1.0-1.5ct | Chithunzi cha SI1-SI2 | 5.0-6.0 mm |
| 15C | C | 1.0-1.5ct | SI2-I1 | 5.0-6.0 mm |
| 15D | D | 1.0-1.5ct | I1-I3 | 5.0-6.0 mm |
| 20A | A | 1.5-2.0ct | Chithunzi cha VVS-SI1 | 5.5-6.5 mm |
| 20B | B | 1.5-2.0ct | Chithunzi cha SI1-SI2 | 5.5-6.5 mm |
| 20C | C | 1.5-2.0ct | SI2-I1 | 5.5-6.5 mm |
| 20D | D | 1.5-2.0ct | I1-I3 | 5.5-6.5 mm |
| 25A | A | 2.0-2.5ct | Chithunzi cha VVS-SI1 | 6.5-7.5 mm |
| 25B | B | 2.0-2.5ct | Chithunzi cha SI1-SI2 | 6.5-7.5 mm |
| 25C | C | 2.0-2.5ct | SI2-I1 | 6.5-7.5 mm |
| 25D | D | 2.0-2.5ct | I1-I3 | 6.5-7.5 mm |
| 30A | A | 2.5-3.0ct | Chithunzi cha VVS-SI1 | 7.0-8.0mm |
| 30B ndi | B | 2.5-3.0ct | Chithunzi cha SI1-SI2 | 7.0-8.0mm |
| 30C | C | 2.5-3.0ct | SI2-I1 | 7.0-8.0mm |
| 30D pa | D | 2.5-3.0ct | I1-I3 | 7.0-8.0mm |
| 35A | A | 3.0-3.5ct | Chithunzi cha VVS-SI1 | 7.0-8.5mm |
| 35B ndi | B | 3.0-3.5ct | Chithunzi cha SI1-SI2 | 7.0-8.5mm |
| 35C | C | 3.0-3.5ct | SI2-I1 | 7.0-8.5mm |
| 35D pa | D | 3.0-3.5ct | I1-I3 | 7.0-8.5mm |
| 40 A | A | 3.5-4.0ct | Chithunzi cha VVS-SI1 | 8.5-9.0mm |
| 40b ndi | B | 3.5-4.0ct | Chithunzi cha SI1-SI2 | 8.5-9.0mm |
| 40C | C | 3.5-4.0ct | SI2-I1 | 8.5-9.0mm |
| 40D pa | D | 3.5-4.0ct | I1-I3 | 8.5-9.0mm |
| 50 A | A | 4.0-5.0ct | Chithunzi cha VVS-SI1 | 7.5-9.5 mm |
| 50b ndi | B | 4.0-5.0ct | Chithunzi cha SI1-SI2 | 7.5-9.5 mm |
| 60A | A | 5.0-6.0ct | Chithunzi cha VVS-SI1 | 8.5-10 mm |
| 60b ndi | B | 5.0-6.0ct | Chithunzi cha SI1-SI2 | 8.5-10 mm |
| 70A | A | 6.0-7.0ct | Chithunzi cha VVS-SI1 | 9.0-10.5mm |
| 70b ndi | B | 6.0-7.0ct | Chithunzi cha SI1-SI2 | 9.0-10.5mm |
| 80A | A | 7.0-8.0ct | Chithunzi cha VVS-SI1 | 9.0-11 mm |
| 80b ndi | B | 7.0-8.0ct | Chithunzi cha SI1-SI2 | 9.0-11 mm |
| 80+A | A | 8.0ct + | Chithunzi cha VVS-SI1 | 9 mm + pa |
| 80+B | B | 8.0ct + | Chithunzi cha SI1-SI2 | 9 mm + pa |
4C Standard ya kuthamanga kwambiri kutentha diamondi
Mtundu
Mtundu wa diamondi wotentha kwambiri umayikidwa m'malo owonera mokhazikika. Akatswiri a miyala amasanthula mtundu wamtundu wa D mpaka Z ndi diamondi yoyikidwa mozondoka, kuwonedwa m'mbali, kuti athandizire kusalowerera ndale.
Kumveka bwino
Magiredi kumveka kwapamwamba kwambiri kutentha kwa diamondi molingana ndi miyezo yovomerezeka padziko lonse lapansi pakukula kwa 10X, kutengera mawonekedwe, kukula, nambala, malo ndi mawonekedwe amkati ndi pamwamba pakukula kumeneko.
Dulani
Akatswiri a miyala yamtengo wapatali, miyeso ndi makona ake amafaniziridwa ndi kafukufuku wa kuwala, moto, scintillation ndi chitsanzo kuti adziwe Gawo la Dulani la diamondi yopangidwa ndi hpht.
Carat kulemera
Gawo loyamba pakuyika kwa diamondi kwa kutentha kwambiri ndikulemera kwa diamondi.Kulemera kwa Carat ndi gawo lolemera la miyala yamtengo wapatali.Kuyika kwa diamondi ndi malo awiri a decimal kuti atsimikizire zolondola.
