Fura Gems is breathing new life into the 400-year-old Coscuez emerald mine in Colombia and its initial sampling has yielded 850 carats of high-quality gemstones, including an exceptional 25.97-carat rough gem named the "ARE Emerald." The ARE gemstone is “rare and exceptional" given its size, color, saturation and clarity, according to the Toronto-based mining company, […]