rose gold stud earrings Basic quality evaluation of rubies

(1) Cor. The ruby ​​with the best color is calledpigeon’s blood red”, aquilo é, the color is as red as the blood of a pigeon, with a bright red color. Claro, true pigeon blood rubies are very rare. Rubies are the best in category A (“sangue de pombo”), followed by category B (pigeon blood rose), category C (rosa vermelha) de novo, and category D (light rose red).

(2) Qualidade. The mass unit of rubies is the same as that of diamonds, which is carat (ct). Rubies of 1 ct são raros, and rubies larger than 5 ct são raros.

(3) Clareza. Because rubies generally contain obvious inclusions, the clarity evaluation standard is low. Geralmente, there is no visible inclusions and the quality is good. If it is visible to the naked eye but not very obvious, and it will not affect the firmness of the gemstone, it is also acceptable.

(4) Transparência. Ruby is not high in clarity, and Gan Qi’s transparency requirements are not high, and for star ruby, translucent or even opaque is better. As long as the clarity is not affected, the higher the transparency, Quanto melhor.

(5) Cortar trabalho. Ruby is very particular about cutting, and its refractive index is lower than that of diamond. Portanto, if ruby ​​is to produce total internal reflection, the angle of the pavilion must be larger than that of diamond, which means that the pavilion must be deeper than diamond; The starlight effect must be cut into a curved surface. The arc height should be appropriate, too low the star line will blur, and too high will affect the appearance.

Resumidamente, the main evaluation of ruby ​​is: whether the color is pure (no unpopular colors or hue, such as the gray tone in ruby), whether the clarity is good (no or few blemishes, inclusões, ribbons, stripes, etc.), and whether the color is uniform , Whether the transparency is high, whether the processing ratio of each part is in compliance with the regulations, whether the polished surface is flat and smooth, whether the style is novel, whether the quality is above 0.3 ct (for ring noodles, use more than 0.3 ct, menor que 0.3 ct can only be used for group Inlaid jewellery. Rubies exceeding 5 ct are rare and must be priced separately).

 

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OEM/ODM Jóias Fabricante Design personalizado suas próprias jóias

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Guangzhou Jingying Focus em colares de anel de atacado personalizados Brincos Brincos de prata esterlina 925 joia,Gold de prata esterlina banhado com 18k,14K,24K ouro amarelo,Ouro branco e ouro rosa.,marca de logotipo ou outras palavras por gravação a laser de acordo com o requisito do cliente.

Nossa capacidade de produção mensal está fazendo 50,000 Brincos de colar de pulseiras,Jewelry Chain Shop,lojas de saída,atacadista de jóias,Companhia de comerciantes e joalheria,Profissional Fornecer Criar jóias personalizadas e produção em massa de alta qualidade 925 Serviço de jóias de prata esterlina.