Winza Sapphire Crystal, 15.79ct, Winza, Tanzania, Untreated, Unheated

Winza Sapphire Crystal, 6.88ct, Winza, Tanzania, Untreated, Unheated

Winza Sapphire Crystal, 8.81ct, Winza, Tanzania, Untreated, Unheated

Winza Sapphire Crystal, 5.18ct, Winza, Tanzania, Untreated, Unheated

Winza Sapphire Crystal, 8.44ct, Winza, Tanzania, Untreated, Unheated

Winza Ruby Crystal, 23.79ct, Winza, Tanzania, Untreated, Unheated, a massive piece, mount as a centrepiece as is in jewellery or cab and partially polish…. 

Winza Ruby / Sapphire Crystal, 59.29ct, Winza, Tanzania, Untreated, Unheated, a massive piece, mount as a centrepiece as is in jewellery or cab and partially polish…. 

Winza Ruby / Sapphire Crystal, 64.72ct, Winza, Tanzania, Untreated, Unheated, a massive piece, mount as a centrepiece as is in jewellery or cab and partially polish….

Peridot, 27.17ct, Tanzania, Untreated Unheated, inclusions on the skin that need to be removed before cutting, rest is vs

Peridot Lot, 62.66ct, Tanzania, Untreated Unheated, 1.64ct-12.28ct, Slight to moderate inclusions may show after faceting

Peridot Lot, 30.72gm / 153.60ct, Tanzania, Untreated Unheated, 3.06ct-9.65ct, vs-vvs-if

Blue Topaz, 5.48ct, Tanzania, Untreated Unheated, vvs-if

Blue Topaz, 16.84ct, Tanzania, Untreated Unheated, vvs-if, awkward shape

Blue Topaz, 13.14ct, Tanzania, Untreated Unheated, vvs-if, colour zone in the middle, and colourless on the sides

Blue Topaz, 7.47ct, Tanzania, Untreated Unheated, vvs-if

Blue Topaz, 8.73ct, Tanzania, Untreated Unheated, vs-vvs (caused by tiny white spots on one side)