ROUGH DIAMONDS, COPPER CATHODES & COLTAN: NAVIGATING THE COMPLEXITIES

Mining of unprocessed gemstones, metallic cathodes, and columbite-tantalite Copper Cathodes presents unique difficulties in the global materials system. Ethical sourcing is paramount, requiring careful documentation to avoid funding

Regarding ensuring the highest polished diamond yield from rough gems, precise selection of initial size is vital, particularly within the 1-2 carat bracket. Generally , roughs falling between approximately 0.90ct - 1.40ct present the most favorable opportunities for maximizing carat weight reten