Diamaint cóireáilte EX-VG hpht Diamond ardbhrú teocht ard
Paraiméadair Diamond ardbhrú teocht ard
| Cód # | Grád | Carat Meáchan | Soiléire | Méid |
| 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 Caighdeán Diamond ardbhrú teocht ard
Dath
Déantar dath diamanta ardbhrú teocht ard a ghrádú i dtimpeallacht chaighdeánaithe féachana. Déanann Geimeolaithe anailís ar dhath sa raon dath D go Z agus cuirtear an Diamond bun os cionn, amharc tríd an taobh, chun dearcadh neodrach a éascú.
Soiléire
Gráid soiléireacht diamaint ardbhrú teocht ard de réir na gcaighdeán a nglactar leo go hidirnáisiúnta ag formhéadú 10X, de réir infheictheacht, méid, líon, suíomh agus nádúr na saintréithe inmheánacha agus dromchla ag an méadú sin.
Gearr
Déantar comhréireanna foriomlána, tomhais agus uillinneacha gné na gemologists a chur i gcomparáid le staidéir ar ghile, tine, scintillation agus patrún chun Grád Gearrtha an diamaint chóireáilte hpht a chinneadh.
Carat meáchan
Is é an chéad chéim i ngrádú diamanta ardbhrú teocht ard ná an Diamond a mheá.Is é meáchan carat an t-aonad meáchain caighdeánach do chlocha geama.Tá grádú diamant go dtí dhá ionad dheachúlacha chun cruinneas a chinntiú.
