Mahenge Spinel, 2.50ct, Mahenge, Tanzania, Untreated Unheated, vs, flattish shape

Mahenge Spinel, 3.95ct, Mahenge, Tanzania, Untreated Unheated, vs - tiny little crystal inclusions on the side

1.07ct Umba Sapphire Cabochon. Tanzania, Untreated Unheated.

Spinel Lot, 15.36ct, Tanzania, Untreated Unheated, Silky, with slight inclusions, and single large cracks going in almost half way in all, can be cut but with almost half the stone...

Yellow Grossular Garnet, 1.17ct, Merelani, Tanzania, Untreated Unheated

Cats-Eye Opal, 4.48ct, Tanzania, Untreated Unheated

Opal Cabochon Lot, 219.00ct, Tanzania, Untreated Unheated

Yellow Grossular Garnet Lot, 69.30gm / 346.5ct, Merelani, Tanzania, Untreated Unheated, tiny melee rough, either do melee cuts or use in paintings, fish tank etc.

Yellow Grossular Garnet Lot, 64.30gm / 321.5ct, Merelani, Tanzania, Untreated Unheated, tiny melee rough, either do melee cuts or use in paintings, fish tank etc.

Yellow Grossular Garnet Lot, 68.80gm / 344ct, Merelani, Tanzania, Untreated Unheated, tiny melee rough, either do melee cuts or use in paintings, fish tank etc.

Yellow Grossular Garnet Lot, 67.50gm / 337.5ct, Merelani, Tanzania, Untreated Unheated, tiny melee rough, either do melee cuts or use in paintings, fish tank etc.

Cats-Eye Opal, 4.53ct, Tanzania, Untreated Unheated