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Hindari Kesalahan Menilai Harga Berlian 3.39 MB | 4:07 Download |
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Cara Cepat Membedakan Blue Sapphire Dan Tanzanite 2.53 MB | 3:04 Download |
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Mengenal Color Change Corundum 2.79 MB | 3:23 Download |
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Penyebab Warna Pada Batu Permata 4.24 MB | 5:09 Download |
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Membedakan Berlian Mentah Dengan Tiruan Nya 3.12 MB | 3:47 Download |
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Mengenal Treatment Pada Jadeite Jade 3.14 MB | 3:49 Download |
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Perbedaan Gemologist Geologist 3.63 MB | 4:24 Download |
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Ini Cara Cek Dan Sertifikasi Emerald Dan Berlian 6.15 MB | 7:28 Download |
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Find Gems In The River Sapphire 8.50 MB | 10:19 Download |
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Diamond Test Real And Fake 2.03 MB | 2:28 Download |
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How To Spot A Fake Diamond 3.72 MB | 4:31 Download |
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Efek Fluorescent Pada Berlian 5.34 MB | 6:29 Download |
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Advance Synthetic Diamond Class 6.62 MB | 8:02 Download |
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What Is A Loupe gemstones gemology geology science loupe 407.81 KB | 0:29 Download |
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Adamas Gem Lab Institute Gemology Paramita 2.01 MB | 2:26 Download |
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Sejarah Singkat Synthetic Diamond 4.38 MB | 5:19 Download |
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Gia Gemological Laboratory By Gia 4.75 MB | 5:46 Download |