The emeralds from Jos can get very large but like this one are usually under-saturated in color. That said, they are infinitely gemmier than their Colombian cousins and exhibit a deeper blue-green color. In addition, they are more interesting from a crystallographic viewpoint, with lovely bi-pyramidal terminations. This particular emerald weighs 9.12 carats and displays a slight color change near the top end of the crystal. BETTER AND MORE GEMMY In PERSON!