Columbia Gem House

【Vancouver, W】Columbia Gem House Launches Winza Sapphires, Rubies

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Editor’s NoteThis article highlights the launch of a new collection of untreated sapphires and rubies from Tanzania by Columbia Gem House. The…

【Tanzania】Columbia Gem House Launches New Source of Traceable Rubies and Sapphires

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Editor’s NoteThis article discusses Columbia Gem House’s new collection of untreated, traceable rubies and sapphires from Tanzania. New Gemstone…

【Vancouver, W】Sourcing Stones with Columbia Gem House

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Editor’s NoteThis article highlights the pioneering work of Eric Braunwart and Columbia Gem House in establishing ethical and traceable sourcing…