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#black star sapphire #star sapphire #asterism #black gemstone #cabochon #phenomenal gem

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#star sapphire #black star sapphire #asterism #phenomenal gem #black gem #cabochon

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#deep blue gem #september birthstone #sapphire gem #blue gemstone #corundum #night sky gem #celestial gem #star sapphire

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#star sapphire #asterism #blue star gem #phenomenal gem #cabochon sapphire