Igi ċċertifikati hpht lab imkabbra djamanti VS VVS Ċarezza
Parametri ta 'djamanti mkabbra fil-laboratorju hpht
| Kodiċi # | Grad | Piż tal-karat | Ċarezza | Daqs |
| 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 ta 'djamanti mkabbra fil-laboratorju hpht
Kulur
Il-kulur tad-djamanti ttrattati b'hpht huwa kklassifikat f'ambjent ta 'wiri standardizzat. Il-ġemologi janalizzaw il-kulur fil-firxa tal-kulur D sa Z bid-djamant imqiegħed rasu 'l isfel, meqjus mill-ġenb, biex jiffaċilita ħsieb newtrali.
Ċarezza
Gradi ċarezza ta 'djamanti trattati hpht skond standards aċċettati internazzjonalment b'ingrandiment 10X, skond il-viżibilità, id-daqs, in-numru, il-post u n-natura tal-karatteristiċi interni u tal-wiċċ f'dak it-tkabbir.
Aqta’
Il-proporzjonijiet, il-kejl u l-angoli tal-aspetti ġenerali tal-Gemologists huma mqabbla ma 'studji ta' luminożità, nar, tpetpet u mudell biex jiddeterminaw il-Grad tal-Qtugħ tad-djamanti trattati hpht.
Piż tal-karat
L-ewwel stadju fil-gradazzjoni tad-djamanti trattati hpht huwa li jiżnu d-djamanti.Il-piż tal-karat huwa l-unità tal-piż standard għall-Australian.Il-gradazzjoni tad-djamanti hija sa żewġ postijiet deċimali biex tiġi żgurata l-eżattezza.
