How to buy gems and standards
Many kinds of precious stones, diamond, ruby, sapphire, cat's eye stone, jade, agate and so on. Made even more variety, there are earrings, pendants, pins, rings, necklaces, bracelets, each species there are a variety of styles. No matter which type of precious stones, what species, must follow the following basic principles:
1? First of all, avoid buying fake goods from the objective
Gem may be small, but worth high. An inconspicuous china gemstone wholesaler sometimes can escape with a color TV, a car or even a piece than the price of Boeing aircraft. If bought fake, its huge losses. Avoid buying fake products in addition to the subjective theory to master certain knowledge and accumulated rich practical experience, preferably formal regulation is the exclusive jewelers buy. In order to increase the reputation and the protection of the interests of consumers, domestic manufacturers and some jewelry stores in taking initiative for the general consumer advisory services. For example, some jewelry jewelers jewelry experts to hire, on-site for consumers to answer all questions on the spot jewelry appraisal free of charge. Now the city, including many small and medium sized cities have such service measures.
2) identification of gemstones to bring basic tools
Even state stores to buy jewelry, we can not take it lightly, in order to improve the accuracy of identification may have to bring basic tools such as magnifying glass, flashlight, etc. condenser.
To bring these tools to consumers without any difficulty. With a magnifying glass to observe the surface of the bright jewel level damage degree, thus to determine the merits of precious stones, gem identification of species.
Identification with the magnifying glass gems, the best times with a 10, such as a 20 times longer to prepare even better. Flashlight with a condenser can be observed gem transparency.
3) The quality of gem color is a very important factor
Has its inherent natural gem color. Observe the color jewelry supplier should be noted that two issues
Not observed in transmitted light color gemstones and precious stones as the main color. Also note on the color of light and environmental impacts, such as tinted glass can not be observed under or incandescent ruby color.
Crystal sizes will affect the color of gemstones. Large number of sapphire color darker, but after the color fades after processing finished gems, value lower. In the process aquamarine, amethyst, topaz and other materials often encountered in this situation. Also some darker color, transparency and low raw material, processed color and transparency are good, such as garnet, etc..
4) gem-value assessment to master the principle of filial piety rating
The value of finished stones the size of its color, the degree of pure, processing, gem weight, size, and several other aspects of the decision. In which the color of some gem stones accounted for 50% of quality grade, purity 30%, refined processing accounted for 20% of each part by 1 to 10 points into 10 grades. For a given gem, the quality factor by the level of three times their percentage of the total increase and get the quality of gems to be level. According to Stone's size (weight) and quality level, the indicative price of precious stones obtained.
The color of stones, the total requirement is color to be positive, and reveals light, bright, crystal clear and there is spirit.
Stone texture to high hardness, transparency, and pure unadulterated, no fissure, flawless.
Stone finished the work to study, fine, beautiful, style should conform to their wishes.
Gem size and prices, not increased by mathematical progression, but according to geometric growth. The price of great span. Size also finished in prison and dimensions such as thickness.
5) The selection mosaic stones to be extra careful, cautious
Because of the presence of embedded frame, china jewelry wholesalers limiting the application of some method, after determining the type of gem to be observed at high magnification through a kind of treatment is and whether it is the assembly.
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