EX-VG hpht diperlakukeun inten tekanan tinggi inten suhu luhur
Parameter inten tekanan tinggi suhu luhur
| 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 tekanan tinggi inten suhu luhur
Warna
tekanan tinggi warna inten suhu luhur ieu gradasi dina nempoan standardized environment.Gemologists nganalisis warna dina rentang warna D nepi ka Z kalawan inten disimpen tibalik ka handap, ditempo ngaliwatan gigir, pikeun mempermudah tempoan nétral.
Kajelasan
Sasmita kajelasan tekanan tinggi inten suhu luhur 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 tekanan tinggi suhu luhur grading inten beuratna inten.Beurat karat mangrupikeun unit beurat standar pikeun batu permata.Inten grading aya ka dua tempat decimal pikeun mastikeun akurasi.
