Tout d'abord, en offrant des pierres précieuses et des bijoux, il est nécessaire de clarifier les destinataires pour éviter des phénomènes déraisonnables. Par exemple, il est considéré comme impoli et déraisonnable pour les femmes d'offrir des bijoux en perles à des hommes ou des bijoux en ivoire à des amis étrangers, parce que les bijoux en perles sont des bijoux féminins, and ivory jewelry is prohibited from importing in [...]
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"You can't make a tool without cutting jade", this sentence fully illustrates the importance of gem processing. Gemstones can have high aesthetic value and commodity value only through style design and fine carving. The process of gem processing is also a process of artistic creation. It must be based on people's aesthetic concepts and consumer [...]
The faceted type is also called the small face type or the turned face type. Its basic feature is that the shape of the gem is composed of many small facets arranged and combined according to a certain rule, which is a regular symmetrical geometric polyhedron. The round facet type is the most common cut [...]
Le cristal est une sorte de pierre précieuse colorée que les gens adorent, et il peut souvent faire pousser un énorme cristal ou un amas de cristaux. Le véritable cristal de cristal pousse dans une géode, et il y a toujours une extrémité sur le mur de la grotte, donc une seule extrémité peut librement former un cône pointu. En général, only half of [...]
The stones here refer to gem-level stones. Gems are the essence of nature in the universe, beau, rare, and condensing energy for hundreds of millions of years. It can be said that they are the spirits of nature. Through the understanding of gems, people believe that these magnificent elves have an impact on people's fortune. [...]
It is generally believed that the word “jewelry” means pearls, jade beads, and treasures means jade, gold and silver ingots, currency, et des phoques. Donc, “jewelry” should refer to pearls, joyaux, jade, or et argent, etc.. Things that are treasures, or precious materials. Il y a 6 producing areas with relatively concentrated gemstones in the world: (1) [...]
(1) Diamants: principalement produit dans la montagne Yimeng, Shandong et Dalian, Liaoning. Parmi eux, la qualité des diamants de qualité gemme de Dalian Wafangdian est la meilleure. (2) Saphir: principalement distribué dans les zones côtières orientales, comme Hainan, Fujian, Jiangsu, Provinces du Shandong et du Heilongjiang. La capacité de stockage est considérable, but the color is mostly indigo blue with [...]
Jewelry is a kind of exquisite crafts with special materials. It will inevitably put forward different material requirements for different production materials. This is the fact. Among the various natural or synthetic gem materials used in jewelry, people have also proposed the rough shape, taille, couleur, transparence, material uniformity and defects, and special optical effects. [...]
Gems are formed due to geological changes. Most of the gems are minerals or rocks naturally formed in the crustal rock layers, which usually take more than ten million years. Due to different geological conditions, the production area is also different, mainly depending on the mineral or rock properties formed by Baogou. Minerals have a [...]
Since every gemstone has its own specific conditions of formation, chemical composition and internal structure, there is still no uniform classification scheme in the world. How to classify gems scientifically and reasonably is a topic of common concern in the international jewelry industry. À présent, countries around the world agree with the classification of gems [...]