Diamond Congo, Diamond Congo Suppliers and Manufacturers at .
About 13% of these are loose diamonds, 3% are loose gemstone, and 3% are mine drilling rig. A wide variety of diamond congo options are available to you, such as d, o z, and f. You can also choose from vvs1, i3, and i1. As well as from very good, excellent, and fair. And whether diamond congo is natural, or synthetic (lab.