Blue color Gemstones

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Royal Blue pear cut sapphire 5.31 carats, Sri Lanka photo
Cobalt blue spinel in octagon cut 1.41 ct, Tanzania photo
Natural tanzanite 41.45 ct, Tanzania photo
Unheated octagon cut tanzanite 23.34 carats, Tanzania photo
Cobalt blue spinel from Tanzania 0.77 ct photo
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Location
Shape
Origin
Selection
Trade color
Basic color