kristal sịntetik bara nnukwu uru
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Acha odo odo sapphire violet Al2O3 maka nkume bara nnukwu uru
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Sapphire green maka gemstone olive green artificial 99.999% Al2O3 sịntetik
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Royal blue Aquamarine Cornflower sapphire 99.999% Al2O3 Paraiba
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Al2O3 99.999% ọla edo champagen sapphire ihe corundum
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99.999% Al2O3 sapphire na-acha uhie uhie rubi ihe bara nnukwu uru
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Sapphire Corundum maka Gemstone Al2O3 crystal ruby royal blue
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Square Ti: Sapphire windo akụkụ 106 × 5.0mmt Doped Ti3+ ma ọ bụ Cr3+ ruby ihe onwunwe
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Rubies/rubies emepụtara ụlọ nyocha maka ọrịre Ruby# 5 Al2O3
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Ihe Ruby Artificial corundum maka gem oringinal ihe onwunwe Pink uhie
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Nduru ọbara ruby ihe doped Ti3+ Cr3+ maka enyo nche bara nnukwu uru