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Moyo Gems - Truly Ethical Loose Sapphires & Rare Gemstones

Discover the Moyo Gems collection: ethical loose sapphires and rare gemstones sourced directly from a women-led artisanal mining initiative in East Africa. These stones come from the Tanzanian Women Miners Association and their partners in the Umba Valley, Tanzania, allowing you to shop with confidence in provenance, traceability and impact.

From vibrant teal and blue tones to lush mossy greens, color-change sapphires and exotic hues, each Moyo gemstone is a unique expression of nature’s palette — ready for custom creations or valued by gem collectors. With strong emphasis on ethical sourcing and sustainable practices, these gems aren’t just beautiful — they make a difference. Every stone supports training, fair pay and safe working conditions for women miners.

Browse through cuts like oval, coffin, step cut and cabochon, and unlock rare loose sapphires that go beyond the familiar. Whether you’re building a meaningful collection or selecting the foundation for a future bespoke piece, these stones carry story, color and integrity. Dive into the Moyo Gems collection and find a gem that stands apart, for your style and your values.

For more information about the Moyo Gems program see our blog post here.

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