Document we just received which shows the trail of the rough to the finished sapphire, From the mine owner to a dealer, Then to a gem Cutter, And then to us to sell for him. Regarding the parcel of rough Yogo sapphires you bought.
At the 2014 Tucson Gem Show, my friend SM initially received. The rough from Mike Roberts. The mine owner at Yogo gulch (near Utica, Montana) during a visit to the mine. We met Mike at the 2012 Tucson gem show and he invited us to visit his mine. After we finished in Tucson.I visited the Yogo mine along with SM and three other friends on Feb. Mike gave us a 90 min. Tour and then invited us. To dig through the jig concentrate at his wash plant. Unfortunately, about 2 1/2 weeks after our visit, Mike was killed in an underground collapse at the same mine we had just toured. We found Mike to be a very warm and interesting person. We were all shocked and saddened by his death. Photos of the mine and are attached. One photo shows a close up of the near vertical sapphire bearing dike along the back (top) of the underground drift. Yogo sapphires are unique becaue they do not have silk so are a pure, uniform blue when mined.
They do not require heating to improve clarity and to remove color zones. Yogos are some of the finest sapphires found anywhere in the world, but sizes are always small and a 1/2ct Yogo is considered rare. 0.77 ct Unheated Natural Cornflower Blue Montana Yogo Sapphire. Cushion Cut 5 x 5 mm, Clarity AAA , with Documentation.
The item "UNHEATED Natural Cornflower Blue Montana YOGO Sapphire Documentation Cushion Cut" is in sale since Saturday, February 24, 2018. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Sapphire\Natural Sapphires".
The seller is "jewelsroughgems" and is located in Casa Grande, Arizona. This item can be shipped to United States.