Yuav hpht pob zeb diamond online lab cog pob zeb diamond 1 carat 2 carat 3 carat
Parameters ntawm hpht lab zus pob zeb diamond
| Code # | Qib | Carat Nyhav | Qhov tseeb | Loj |
| 04 A | A | 0.2-0.4 hli | VVVVVV VS | 3.0-4.0 hli |
| 06a ib | A | 0.4-0.6 hli | VVVVVV VS | 4.0-4.5 hli |
| 08 A | A | 0.6-0.8 hli | VVS-SI 1 | 4.0-5.0 hli |
| 08b ua | B | 0.6-0.8 hli | SI1-SI2 | 4.0-5.0 hli |
| 08c ua | C | 0.6-0.8 hli | SI2-I1 | 4.0-5.0 hli |
| 08d ib | D | 0.6-0.8 hli | I1-I3 | 4.0-5.0 hli |
| 10 A | A | 0.8-1.0 hli | VVS-SI 1 | 4.5-5.5 hli |
| 10B | B | 0.8-1.0 hli | SI1-SI2 | 4.5-5.5 hli |
| 10 C | C | 0.8-1.0 hli | SI2-I1 | 4.5-5.5 hli |
| 10D | D | 0.8-1.0 hli | I1-I3 | 4.5-5.5 hli |
| 15 A | A | 1.0-1.5 ct | VVS-SI 1 | 5.0-6.0 hli |
| 15B | B | 1.0-1.5 ct | SI1-SI2 | 5.0-6.0 hli |
| 15 C | C | 1.0-1.5 ct | SI2-I1 | 5.0-6.0 hli |
| 15D | D | 1.0-1.5 ct | I1-I3 | 5.0-6.0 hli |
| 20 A | A | 1.5-2.0 hli | VVS-SI 1 | 5.5-6.5 hli |
| 20B | B | 1.5-2.0 hli | SI1-SI2 | 5.5-6.5 hli |
| 20 C | C | 1.5-2.0 hli | SI2-I1 | 5.5-6.5 hli |
| 20D | D | 1.5-2.0 hli | I1-I3 | 5.5-6.5 hli |
| 25 A | A | 2.0-2.5 ct | VVS-SI 1 | 6.5-7.5 hli |
| 25B | B | 2.0-2.5 ct | SI1-SI2 | 6.5-7.5 hli |
| 25C ua | C | 2.0-2.5 ct | SI2-I1 | 6.5-7.5 hli |
| 25D ib | D | 2.0-2.5 ct | I1-I3 | 6.5-7.5 hli |
| 30 A | A | 2.5-3.0 hli | VVS-SI 1 | 7.0-8.0 hli |
| 30B | B | 2.5-3.0 hli | SI1-SI2 | 7.0-8.0 hli |
| 30 C | C | 2.5-3.0 hli | SI2-I1 | 7.0-8.0 hli |
| 30D | D | 2.5-3.0 hli | I1-I3 | 7.0-8.0 hli |
| 35 A | A | 3.0-3.5 hli | VVS-SI 1 | 7.0-8.5 hli |
| 35B | B | 3.0-3.5 hli | SI1-SI2 | 7.0-8.5 hli |
| 35C ua | C | 3.0-3.5 hli | SI2-I1 | 7.0-8.5 hli |
| 35D ib | D | 3.0-3.5 hli | I1-I3 | 7.0-8.5 hli |
| 40 A | A | 3.5-4.0 hli | VVS-SI 1 | 8.5-9.0 hli |
| 40B | B | 3.5-4.0 hli | SI1-SI2 | 8.5-9.0 hli |
| 40C ua | C | 3.5-4.0 hli | SI2-I1 | 8.5-9.0 hli |
| 40D ib | D | 3.5-4.0 hli | I1-I3 | 8.5-9.0 hli |
| 50 A | A | 4.0-5.0 ct | VVS-SI 1 | 7.5-9.5 hli |
| 50B | B | 4.0-5.0 ct | SI1-SI2 | 7.5-9.5 hli |
| 60 A | A | 5.0-6.0 hli | VVS-SI 1 | 8.5-10 hli |
| 60B | B | 5.0-6.0 hli | SI1-SI2 | 8.5-10 hli |
| 70 A | A | 6.0-7.0 hli | VVS-SI 1 | 9.0-10.5 hli |
| 70 B ib | B | 6.0-7.0 hli | SI1-SI2 | 9.0-10.5 hli |
| 80 A | A | 7.0-8.0 hli | VVS-SI 1 | 9.0-11 hli |
| 80B | B | 7.0-8.0 hli | SI1-SI2 | 9.0-11 hli |
| 80 + A | A | 8.0ct + | VVS-SI 1 | 9mm + |
| 80+B | B | 8.0ct + | SI1-SI2 | 9mm + |
4C Standard ntawm lab zus pob zeb diamond
Xim
Lab zus pob zeb diamond xim yog muab qhab nia nyob rau hauv ib tug standardized saib ib puag ncig.Gemologists tsom xam cov xim nyob rau hauv lub D rau Z xim ntau yam nrog lub pob zeb diamond muab tso rau pem hauv ntej, saib los ntawm sab, los pab kom ib tug nruab nrab saib.
Qhov tseeb
Qib clarity raws li kev lees paub thoob ntiaj teb ntawm 10X magnification, raws li qhov pom, qhov loj, tus lej, qhov chaw thiab qhov xwm txheej ntawm cov yam ntxwv sab hauv thiab saum npoo ntawm qhov magnification.
Txiav
Gemologists tag nrho cov proportions, ntsuas thiab facet ces kaum yog muab piv nrog rau cov kev tshawb fawb ntawm brightness, hluav taws kub, scintillation thiab qauv los txiav txim qhov txiav Qib.
Carat hnyav
Thawj theem nyob rau hauv lab zus pob zeb diamond grading yog hnyav lub pob zeb diamond.Carat hnyav yog tus qauv hnyav ntsuas rau gemstones.Kev muab qhab nia ntawm pob zeb diamond yog rau ob qhov chaw lej kom ntseeg tau qhov tseeb.
