(1) The starlight should be obvious, the position should be centered, and there should be no missing rays. (2) The starlight is clear, which makes people feel that it comes from the inside of the gemstone, rather than floating on the surface of the curved (ie egg noodle) pedra preciosa. Because the natural starlight red and […]
Arquivos de categoria: Notícias de jóias
According to the gemological point of view, the term sapphire refers specifically to blue corundum gemstones. Other blue gemstones that are not corundum (A1203) components, no matter how cute they are, should not be called “safiras”. Pode ser chamado “blue gem” ou “blue XX stone”. Por exemplo, blue diamond can be called “blue diamond”. […]
In pegmatite, although the crystal has enough space for growth, the possibility of proper pigment ions, especially Cr ions, entering the lattice is very small, while Fe and Ti ions may enter the lattice. Portanto, the chance of finding rubies in pegmatite is extremely small, while it is possible to find sapphires. In basalt, there […]
(1) Emerald-emerald green beryl containing chromium, (2) Aquamarine-iron-containing sky blue to sea blue beryl. (3) Golden emerald-golden yellow beryl containing iron, (4) Dark brown emerald-ilmenite beryl with starlight effect. (5) Rose emerald-beryl containing cesium, lithium or manganese. O nome “esmeralda” comes from the transliteration of Persian Zumurud. No meu país antigo, it was called “Zumurud” […]
When the ancient Roman scholar Pliny commented on emeralds, ele disse: “Indeed, no gemstone has a more pleasing color, and emeralds always emit a soft and rich brilliance, which makes people never tire of it.” In addition, the production of emeralds in the world is extremely rare (much less than the production of diamonds). According […]
There are four main economic evaluation conditions for emeralds, nomeadamente: ①Color: emerald green and dark green are better, greenish blue and yellowish ones are inferior; ②Transparency: crystal clear, clear and bright is the best, translucent Those who can only be included in the third grade; ③Purity: emeralds are often flawed, pure ones are rare and […]
(1) Complex composition: Tourmaline is an extremely complex boro-aluminosilicate mineral, and it is the gem mineral with the most complex chemical composition in nature. It may contain one or several elements such as magnesium, ferro, lítio, potassium, sódio, etc.. Due to the different content ratios of these elements, tourmaline often has different colors. Como […]
Opala tem muitos nomes, principalmente “gema branca” e “pedra chique”. No sul do meu país, é chamado “nuvem de montanha piscando”, que vem da famosa área produtora da Austrália “Cume Relâmpago”. Opala é listada como a pedra de nascimento de outubro pela indústria joalheira internacional, simbolizando esperança e felicidade. Opala é a pedra preciosa mais colorida. […]
lue Nile Gold We carry jewelry that’s crafted in both 18k and 14k gold. Nosso ouro 18k é uma liga de 75% ouro com outros metais para torná-lo forte o suficiente para uso diário, e nosso ouro 14k é uma liga de 58.3% ouro e outros metais. The minimum karat that is allowed to be […]
Gráfico de quilates de ouro 24 quilate = 100% ouro 22 quilate = 91.7% gold Both 24k and 22k are considered too soft for fine jewelry, embora valorizado e usado em algumas culturas. 18 quilate = 75.0% gold Considered to be the luxury end of fine jewelry. 14 quilate = 58.3% gold Ideal for fine jewelry, balancing […]