Buying office: Arusha, Tanzania; Sales and Shipping: London, United Kingdom. All items on the website are in our UK office, ready to ship to you. We ship fast. Stock moves quickly, so buy now. All natural, untreated, unheated unless otherwise stated. The best way to do it is just add to cart, what you need as you go along, you may not find it again due to so much that we add on site. Un-enhanced photos, taken in normal room light, so you are seeing what we see here. We buy first-hand from the hands of the miner, on ground, and sell them to you. We sell at the same prices here as if you were buying from us in Arusha.