Igi Certified hpht lab tumuwuh inten VS VVS Clarity
Parameter hpht lab tumuwuh inten
Kode # | Kelas | Beurat Karat | Kajelasan | Ukuran |
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 | 4,5-5,5 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 |
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 | 5,5-6,5 mm |
20B | B | 1,5-2,0ct | 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 | 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 | 7,0-8,5 mm |
35B | B | 3.0-3.5ct | SI1-SI2 | 7,0-8,5 mm |
35C | C | 3.0-3.5ct | SI2-I1 | 7,0-8,5 mm |
35D | D | 3.0-3.5ct | I1-I3 | 7,0-8,5 mm |
40A | A | 3,5-4,0ct | VVS-SI1 | 8,5-9,0 mm |
40B | B | 3,5-4,0ct | SI1-SI2 | 8,5-9,0 mm |
40C | C | 3,5-4,0ct | SI2-I1 | 8,5-9,0 mm |
40D | D | 3,5-4,0ct | I1-I3 | 8,5-9,0 mm |
50A | A | 4.0-5.0ct | VVS-SI1 | 7,5-9,5 mm |
50B | B | 4.0-5.0ct | SI1-SI2 | 7,5-9,5 mm |
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+ |
80+B | B | 8,0ct + | SI1-SI2 | 9mm+ |
4C Standar hpht lab tumuwuh inten
Warna
hpht diperlakukeun inten warna ieu gradasi dina nempoan standardized environment.Gemologists nganalisis warna dina rentang warna D mun Z kalawan inten disimpen tibalik ka handap, ditempo ngaliwatan gigir, pikeun mempermudah tempoan nétral.
Kajelasan
Sasmita kajelasan tina hpht diperlakukeun inten nurutkeun standar ditarima sacara internasional dina 10X magnification, nurutkeun pisibilitas, ukuran, jumlah, lokasi jeung alam ciri internal tur permukaan dina magnification éta.
Motong
Gemologists babandingan sakabéh, pangukuran jeung sudut facet dibandingkeun jeung studi kacaangan, seuneu, scintillation jeung pola pikeun nangtukeun Cut Kelas inten dirawat hpht.
beurat karat
Tahap kahiji dina hpht dirawat inten grading nyaéta timbangan inten.Beurat karat mangrupikeun unit beurat standar pikeun batu permata.Inten grading aya ka dua tempat decimal pikeun mastikeun akurasi.