The quality and origin of emeralds are the main factors affecting the preservation of emeralds, and the size is one of the criteria for judging the quality of emeralds.
1, mass
The quality of emeralds is mainly judged by color, purity, weight and cutting. Emerald is pure in color and has few cracks. Cutting can well show the fire color and color of emeralds, which shows that emeralds are of high quality. At this time, the weight of emerald has a great influence on its preservation, and the price difference of 1 carat is very large. In principle, emeralds above 65,438+0 carats are preserved. The greater the weight of emeralds, the higher the rarity of emeralds and the higher the preservation value of collections.
2. Country of origin
Although heroes don't ask the source, emeralds are different, and the origin of emeralds greatly affects the value of emeralds. Colombia is the most famous producer of emeralds. Emeralds in this area are pure and green in color, high in quality and have a long history. It is also one of the most popular emerald producing areas in the market. In addition, emeralds in Zambia and Brazil are also increasing. With the decrease of emeralds in Colombia, emeralds in Zambia and Brazil quickly fill the market demand for emeralds, and the prospects are very impressive.
3. Certificate
It is very important not to understand the jade certificate, and having an international authoritative testing certificate can be said to be a guarantee to some extent. The cost of an international certificate is relatively high. Emerald with a weight of 1 carat generally does not issue an international authoritative inspection certificate, because the inspection cost accounts for too much in the cost of gemstones, which is not a guarantee for consumers and businesses, but a burden.
Generally speaking, high-quality emeralds are collectible in 1 carat. Emeralds are naturally cracked, making large carats of emeralds even rarer. The larger the carat, the higher the preservation value of emerald series.