Faceting Rough Singles
Ethically sourced East African gemstones, shipped from the UK
Our prices are the same as you were buying from us in person in Arusha, only with better shipping and payment logistics. Shipping via Royal Mail (USPS in the US) and FedEx.
Arusha prices, wherever you are.
Gemologist Checked, Quality Assured.
Umba Sapphire, 2.00ct, Umba Valley, Tanzania, Untreated Unheated. Slightly included, milky with a very challenging shape
Umba Sapphire, 3.62ct, Umba Valley, Tanzania, Untreated Unheated. Heavily included with silk
Umba Sapphire, 3.80ct, Umba Valley, Tanzania, Untreated Unheated. Moderately included with silk and a challenging shape
Malaya Garnet, 8.03ct, Tanzania, Untreated Unheated, fine needles causing a silky appearance, flat shape, see side pics
Umba Sapphire, 1.97ct, Umba Valley, Tanzania, Untreated Unheated. Vs-Si
Umba Sapphire, 2.56ct, Umba Valley, Tanzania, Untreated Unheated. Vs, colour shift, see pics
Umba Sapphire, 5.99ct, Umba Valley, Tanzania, Untreated Unheated. Slightly included (tiny scattered white spots) Flattish stone with a challenging shape, you can cut a portrait or tablet cut
Umba Sapphire, 7.13ct, Umba Valley, Tanzania, Untreated Unheated. Slightly to moderately included (tiny scattered white spots) Flattish stone, you can cut a portrait or tablet cut
Umba Sapphire, 4.81ct, Umba Valley, Tanzania, Untreated Unheated. Colour changing. Flat stone, you can cut a portrait or tablet cut from this, or set it in jewellery as is
Winza Sapphire Crystal, 6.83ct, Winza, Tanzania, Untreated Unheated, tiny gemmy faceting portions but please don’t facet it
Winza Sapphire, 6.20ct, Winza, Tanzania, Untreated Unheated, facetable portions, see backlit pics
Umba Sapphire, 18.37ct, Umba Valley, Tanzania, Untreated Unheated. Cabbing grade rough, yes it has faceting portions but tiny. Seems to be changing colour or more shifting colour
Umba Sapphire, 14.72ct, Umba Valley, Tanzania, Untreated Unheated. Slightly to moderately included, slight silk, crack going a 1/4 way in. See the backlit pics I have circled the crack, minor fissures to be removed before faceting
Umba Sapphire, 3.70ct, Umba Valley, Tanzania, Untreated Unheated. Slightly to moderately included which some surface gunk to be removed on preform
Umba Sapphire, 2.95ct, Umba Valley, Tanzania, Untreated Unheated. Slightly included with some surface gunk that needs removing on preform
Umba Sapphire, 4.37ct, Umba Valley, Tanzania, Untreated Unheated. Flat shape, see pics and video, slightly to very slightly included


