Umba Sapphires - Tanzania

Umba Sapphires from the Umba Valley, Tanzania

Larger parcels of rough gemstones offered with dealers, cutters, and serious collectors in mind. These are select parcels with enough volume, variety, and value to leave plenty of meat on the bone for resale, cutting projects, or long-term inventory building
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76 pieces / 50.143 grams / 250.715 carats / 3.29+ carats average / AAA grade (95+%)