Cobalt Blue Spinel gemstone | Top quality gems at a decent price

blue and light-blue spinel

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Cobalt blue spinel from Tanzania 3.51 ct photo

Cobalt blue spinel from Tanzania 3.51 ct

Cobalt blue spinel 2.45 carats, Tanzania photo

Cobalt blue spinel 2.45 carats, Tanzania

Extremely rare cobalt spinel 0.51 ct, Vietnam, Lotus photo

Extremely rare cobalt spinel 0.51 ct, Vietnam, Lotus

Unique octagon-cut cobalt spinel 1.65 ct, Tanzania photo

Unique octagon-cut cobalt spinel 1.65 ct, Tanzania

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