| Strictly speaking, the gem minerals processing | | | | performance is better than diamonds, emeralds, |
| through the people, and then for the people of | | | | but because of high-quality emeralds in the world |
| the decoration can be as precious stones (or | | | | diamond production even more than the quality |
| jewelry). As a qualified gem, at least the following | | | | |
| three conditions: | | | | f very broad distribution of its resources, its |
| Appearance: This is the china gemstone basic | | | | commercial value will be affected. For example, in |
| prerequisite. Specific requirements of bright colors | | | | a few centuries ago, when Europe found |
| pure, transparent and flawless, brilliant luster, or | | | | amethyst Initially, beautiful novel, was regarded as |
| change color rendering, color, Star and Cat's Eye | | | | precious stones. But in Brazil, to find high-quality |
| and other special optical effects. | | | | large amethyst deposits, the amethyst will no |
| Durability: gem requires not only its beauty, but | | | | longer have the name of the treasures. Another |
| also maintain the bright and flashing with the | | | | example is the fine texture of the emerald gem, |
| durability, that must be hard (Mohs hardness of | | | | price per carat up to 2 million or more, much |
| gem stones should be 7 and above) | | | | more expensive than diamonds. This does not |
| wear-resistant and has good chemical stability. | | | | mean the performance is better than diamonds, |
| Rarity: rare gem to output as expensive, even | | | | emeralds, but because of high-quality emeralds in |
| very bright china gemstone , if very broad | | | | the world diamond production even more than the |
| distribution of its resources, its commercial value | | | | qualityf very broad distribution of its resources, its |
| will be affected. For example, in a few centuries | | | | commercial value will be affected. For example, in |
| ago, when Europe found amethyst Initially, | | | | a few centuries ago, when Europe found |
| beautiful novel, was regarded as precious stones. | | | | amethyst Initially, beautiful novel, was regarded as |
| But in Brazil, to find high-quality large amethyst | | | | precious stones. But in Brazil, to find high-quality |
| deposits, the amethyst will no longer have the | | | | large amethyst deposits, the amethyst will no |
| name of the treasures. Another example is the | | | | longer have the name of the treasures. Another |
| fine texture of the emerald gem, price per carat | | | | example is the fine texture of the emerald gem, |
| up to 2 million or more, much more expensive | | | | price per carat up to 2 million or more, much |
| than diamonds. This does not mean the | | | | more expensive than diamonds. |