Gemological Institute of America1年
Large Namibian Demantoid Garnet
Figure 1. This selection of andradite garnet from Namibia’s Green Dragon mine includes an 11.63 ct demantoid round brilliant, an unusually large stone for this ...
Gemological Institute of America3年
Large Namibian Demantoid Garnet
Figure 1. This selection of andradite garnet from Namibia’s Green Dragon mine includes an 11.63 ct demantoid round brilliant, an unusually large stone for this ...