Ruby grading qauv mas siv 1T thiab 4C: pob tshab, xim, pob tshab, txiav, txiav, carat.
Transparency: Qhov degree uas lub pov haum cia pom lub teeb hla dhau.Hauv kev faib tawm ntawm qhov muag liab qab rubies Transparency feem ntau muab faib ua tsib theem: translucent, translucent, translucent, semi-pob tshab, opaque.
Xim Criteria - Feem ntau, cov xim ruby yog purer thiab richer.Qhov zoo dua, tus nqi siab dua.Tom qab ua ke ntau yam ntsiab lus, nws cuam tshuam cov xim ntawm ruby thiab sapphire.Ruby thiab sapphire tau muab faib ua 5 qib, thiab ruby muab faib ua 5 qib ntawm crimson, liab, nruab nrab liab, lub teeb liab thiab lub teeb liab.
Clarity Criteria: Clarity yog hais txog tus lej ntawm kev suav nrog hauv lub pov haum.Nws feem ntau muab faib ua 5 degrees.Liab sapphire feem ntau muaj qee tus naj npawb ntawm impurities, thiab qhov loj, qhov nyiaj, pob tshab, thiab qhov chaw ntawm cov impurities muaj feem cuam tshuam rau tus nqi ntawm liab sapphire.
Cov txheej txheem txiav: suav nrog txiav kev taw qhia, hom, kev faib ua feem, symmetry, polish, thiab lwm yam.
Carat Nyhav: Hais txog qhov hnyav ntawm lub pov haum.nyob rau hauv tib yam kev mob zoo Qhov hnyav dua, tus nqi siab dua.Hauv particular, geometric nce nyob rau hauv geometric nqi ntawm high-zoo liab sapphires ntau dua 1 carat nce.nyob rau hauv tib yam kev mob zoo Qhov hnyav dua, tus nqi siab dua.Hauv particular, geometric nce nyob rau hauv geometric nqi ntawm high-zoo liab sapphires ntau dua 1 carat nce.Ib tug raug ruby thiab sapphire sizing thiab luj daim ntawv teev cov feem ntau ruby thiab sapphire sab qhov ntev thiab lawv qhov hnyav txhawb.Cov lus no qhia txog kev kwv yees qhov hnyav ntawm tus qauv txiav sapphire.
Lub sij hawm xa tuaj: Jun-09-2022