Emerald can be divided into four varieties according to whether it has special optical effects and special phenomena, namely: emerald, emerald cat's eye, starlight emerald and Darbiz emerald.
1, emerald. Is a green grandma without any special optical effects.
2, jade cat's eye. It's an emerald with cat's eye effect. Emeralds are very rare in nature, and emeralds with cat's eye effect are even rarer, which can be said that things are rare and expensive. So the emerald cat's eye is very expensive.
3. Starlight Emerald. It's an emerald with starlight effect. Emerald cat eyes with starlight effect are less than emeralds, so they are more expensive.
4. Darbiz Emerald. Characterized in that the cross section of the stone body has hexagonal black stripes radiating outward from the center, and a hexagonal transparent or black core can be arranged in the middle.
Extended data:
Buying skills
1, the choice of color is the first. Medium-deep emerald is the most precious. Too deep or too shallow will affect the value of jewelry.
2. Whether emerald is crystal clear or not depends not only on the color of the gem, but also on the transparency and flaw of the gem. Usually, medium-quality emeralds have some cotton wadding-like wraps. As long as the defects do not seriously affect the beauty of the gemstone, the price is appropriate.
3. Emerald is brittle, so when buying jewelry, it is necessary to check whether there are obvious cracks in the gem, which will affect the durability and value of the gem.
4. Jade is difficult to identify. It is best to ask for an identification certificate when buying, which proves that it is natural jade and has not been colored.
Baidu encyclopedia-emerald
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