Colombia, Zambia and Brazil are one of the three major emeralds producing areas in the world. In recent twenty years, Zambia has gradually become one of the important emeralds producing areas with the decline of emeralds production in Colombia. Emerald color reaches the purity of vvg micro-oil and above (without excessive pursuit of purity). If the size is not less than ten or twenty minutes, there is room for appreciation. The price of emeralds is rising by about 20% every year, and there is still a lot of room for growth in the future.