110.09ct Opal, Tanzania, Untreated Unheated, from a 1999 deposit

Sapphire / Ruby Crystal Lot, tiny, 6.11ct, Different areas in Tanzania, Untreated Unheated, small but crystalline, excellent for setting as is directly into jewellery, 1.22ct average 

Colourless Topaz Lot, 19.49ct, Tanzania, Untreated Unheated, vvs-if, 2.21ct-3.64ct

Colourless Topaz Lot, 19.75ct, Tanzania, Untreated Unheated, vvs-if, 3.01ct-3.65ct

Tanzanite Crystal, 9.13ct, Merelani, Tanzania, Untreated Unheated 

Tanzanite Crystal, 35.50ct, Merelani, Tanzania, Gently Heated

Tanzanite Crystal, 7.82ct, Tanzania, Untreated Unheated

Tanzanite Crystal, ever seen a purple and blue band like this? 16.09ct, Tanzania, gently heated

2.35ct Hessonite Garnet, Untreated Unheated, native cut

Confetti Sunstone Cabochon, 11.00ct, Tanzania, Untreated Unheated, flat backed

70.82ct Opal, Tanzania, Untreated Unheated, from a 1999 deposit, chatoyant (cats-eye effect)

Emerald Crystal, 9.80ct, Tanzania, Untreated Unheated, specimen grade

32.60gm Mondo Quartz Crystal, Tanzania 

Confetti Sunstone Cabochon, 7.32ct, Tanzania, Untreated Unheated, flat backed 

0.87ct Mahenge Spinel, Mahenge, Tanzania, silky, Untreated Unheated, tiny stone in

6.66ct Mahenge Spinel Crystal, Tanzania, Untreated Untreated