DF GJ KM Launi hpht da aka girma lu'u-lu'u akan layi
Ma'auni na hpht lab girma lu'u-lu'u
| Code # | Daraja | Nauyin Carat | Tsaratarwa | Girman |
| 04A | A | 0.2-0.4ct | Farashin VVS | 3.0-4.0mm |
| 06 A | A | 0.4-0.6ct | Farashin VVS | 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 |
| 10 A | A | 0.8-1.0ct | VVS-SI1 | 4.5-5.5 mm |
| 10B | B | 0.8-1.0ct | 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 |
| 15 A | 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 |
| 20 A | 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 |
| 25 A | A | 2.0-2.5ct | VVS-SI1 | 6.5-7.5 mm |
| 25B | B | 2.0-2.5ct | 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 | 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 | 8.5-10 mm |
| 60B | B | 5.0-6.0ct | SI1-SI2 | 8.5-10 mm |
| 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 | 9.0-11 mm |
| 80B | B | 7.0-8.0ct | SI1-SI2 | 9.0-11 mm |
| 80+A | A | 8.0ct + | VVS-SI1 | 9mm+ ku |
| 80+B | B | 8.0ct + | SI1-SI2 | 9mm+ ku |
4C Standard na hpht lab girma lu'u-lu'u
Hpht Lab girma lu'u-lu'u Launi
Launi na lu'u-lu'u yana da daraja a cikin daidaitaccen yanayin kallo. Masana ilimin gemologists suna nazarin launi a cikin launi na D zuwa Z tare da lu'u-lu'u da aka sanya a sama, ana kallo ta gefe, don sauƙaƙe ra'ayi na tsaka tsaki.
Hpht Lab girma lu'u-lu'u Clarity
Tsabtace maki bisa ga ƙa'idodin da aka yarda da su na duniya a haɓaka 10X, gwargwadon ganuwa, girman, lamba, wuri da yanayin halaye na ciki da saman a wancan haɓakawa.
Hpht Lab girma lu'u-lu'u Yanke
Gemologists gabaɗaya ma'auni, ma'auni da kusurwoyi na facet ana kwatanta su tare da nazarin haske, wuta, scintillation da tsari don sanin Yanke Grade.
Hpht Lab girma lu'u-lu'u Carat
Mataki na farko a cikin ƙimar lu'u-lu'u shine auna lu'u-lu'u.Nauyin Carat shine ma'aunin nauyi na daidaitattun duwatsu masu daraja.Ƙididdigar lu'u-lu'u zuwa wurare guda biyu ne don tabbatar da daidaito.
