หินมอยส์ซอไนต์ทรงหลวมขนาด2 CT D สี8มม. VVS1หินโมอิสซาไนต์เจียระไนอย่างดีเยี่ยมเพชรเชิงบวกสำหรับการทดสอบในห้องปฏิบัติการ

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