The first is to choose good quality, well-known brands with high reputation.
Domestic well-known brands and local well-known brand product quality, high technical level of accreditation bodies to provide technical support, and generally has good after-sales service, the higher the overall quality of staff.
Second, it is necessary to standardize the local management of large-scale shopping malls, stores to buy.
Large-scale shopping malls, stores usually stationed in demanding the jewelry business, management norms, attention to relevant state laws and regulations, such as metrology, standardization method, product quality, management of identity information, such as implementation of the lawful rights and interests of consumers can be protected .
Third, we should ask for identification jewelry certificate.
When buying jewelry, do not forget to ask for identification of the corresponding certificate of jewelry and jewelry purchases to ensure that in line with the certificate. For example, a net of diamonds to differentiate between degrees LC, VVS, VS, SI, and P-5 level. Diamond as a result of the price of diamond jewelry is very high, usually the consumer at the time of purchase, diamond merchants will be issued the Certificate of Authenticity, including: 4C identification, the original diamond photo, date and identification of units purchased. As for Jade, national standards for natural emerald directly named "Emerald" should be handled manually annotated "Jade (for)" the words. At the same time, attention should be paid to the identification certificate issued by whether there is sufficient credibility. If the purchase of  jewelrynon-identification with the corresponding certificate should be trusted to the local accreditation body jewelry appraisal consultation.
Fourth, consider the function of preserving and increasing.
Pearl is a pearl from the surface layer of calcium and the composition of the basic components of calcium carbonate, calcium carbonate acid occurs when a chemical reaction, this type of jewelry less durability, less maintenance, so this is intended to old .As the saying goes, in the archaeological finds of pearl is the reason we did not see, and therefore in considering hedge function is generally not considered in this species. In addition, the average number of precious stones as a result of production, low value, usually little change in prices, but also not suitable for use as a hedge. And especially synthetic disposed goods, and along with the development of science and technology, manual processing, increase the synthesis of technology, raw material costs reduced the value of precious stones in this category getting less and less, preserve and increase the role would not serve any purpose. Therefore, in general, as a function of hard currency and preserve and increase the value of the jewelry, can only be a natural high-end jewelry, Jade A specific mainly for goods, diamonds, rubies, sapphires, emeralds, cat's eye and so on. Select the key to this type of jewelry is to a high level of quality, this is the premise.
Fifth, pay attention to the way to buy.
Buy red, sapphire, it is best to put a magnifying glass 10 times, and to watch it under natural light, true colors, because in light of ruby red and bright colors than, under the color of sapphire in the shallow light. To choose ruby red, pure red, bright, sapphire blue Microstrip to choose purple, but not with black. And to carefully observe whether there are cracks and inclusions, which are the factors that affect the value. Crystal as a result of cheaper prices in general, so at the time of purchase, it can be carried out in glass depiction of the hardness due to crystal 7, the glass is only 5. In addition, if the relatively large crystal products, but also can be used to identify the following method: The crystal on a hair, the human eye can see through the crystal double shadow of hair, for the real thing, mainly because the crystal has a double refraction.