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Igi yakasimbiswa hpht lab yakakura madhaimondi VS VVS Kujeka

Igi yakasimbiswa hpht lab yakakura madhaimondi VS VVS Kujeka

Tsanangudzo Pfupi

hpht lab inorimwa madhaimondi, anowanzo kunzi lab yakagadzirwa, yakagadzirwa nemunhu, kana kunyange madhaimani ekugadzira, anogadzirwa munzvimbo yemurabhoritari inoteedzera maitiro echisikigo ekukura kwedhaimondi - chete, zvichitora nguva shoma (taura, 3 bhiriyoni makore mashoma. , give or take) uye mari shoma.

Iyo hpht lab inokura madhaimondi i100% madhaimondi chaiwo, uye ari optical, kemikari uye panyama akafanana neakasikwa, akacherwa madhaimani.Iko kudiwa kwehpht lab yakakura madhaimondi kwakakwira mumakore achangopfuura, sezvo nzira dzeinjiniya uye tekinoroji zvakakwaniswa kugadzira madhaimondi ari, neakaundi ese, akanaka, ane mari, madhaimani chaiwo.


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Maparamita ehpht lab akakura madhaimondi

Kodhi # Giredhi Carat Weight Kujeka Size
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 Standard yehpht lab yakakura madhaimondi

AVAV (2)

Color

hpht yakabatwa ruvara rwemadhaimani inoiswa mugiredhi munzvimbo yakajairika yekuona.Vanachiremba veGemologist vanoongorora ruvara muD kusvika kuZ ruvara rwedhaimondi rakaiswa kumusoro, richitariswa nepadivi, kuti rive nyore kuona kwazvakarerekera.

AVAV (3)

Kujeka

Magiredhi kujekeswa kwehpht yakabatwa madhaimondi zvinoenderana neyakagamuchirwa pasi rose zviyero pa10X magnification, zvichienderana nekuonekwa, saizi, nhamba, nzvimbo uye chimiro chemukati nepamusoro hunhu pakukurisa ikoko.

AVAV (4)

Cheka

Gemologists huwandu hwakazara, zviyero uye facet angles inofananidzwa nezvidzidzo zvekupenya, moto, scintillation uye pateni kuona iyo Cheka Giredhi yehpht yakabatwa madhaimani.

AVAV (1)

Carat uremu

Danho rekutanga muhpht rakabatwa madhaimani giredhi kuyera dhaimondi.Carat uremu ndiyo yakajairwa huremu unit yematombo anokosha.Magiredhi edhaimani ari kunzvimbo mbiri dzedesimali kuti ive nechokwadi.


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