Руби, the mineral name is corundum, depends on the chromium content in it. Since crystals often appear double crystals, they are prone to cracks, and the increase in chromium content will increase the color of rubies. The rutile contained in it can produce silky appearance or arc-shaped visible starlight effect. Heating or radiation can remove […]
Архиви на категория: Новини за бижута
(1) Цвят. The ruby with the best color is called “pigeon’s blood red”, това е, the color is as red as the blood of a pigeon, with a bright red color. Разбира се, true pigeon blood rubies are very rare. Rubies are the best in category A (“Кръвта на гълъба”), followed by category B (pigeon blood […]
Sapphire is a symbol of calmness and wisdom. Sapphire has a lofty status in European and American countries. In Europe, sapphire blue is known as “Royal Blue”. В Съединените щати, sapphire is also designated as “national stone”. “The Duke of Windsor once gifted a sapphire ring to his beloved wife as a gift of […]
Rock Crystal, the mineral name is quartz, is a very old gem. For thousands of years, crystal has been regarded as a symbol of unyielding, purity and kindness with its pure, transparent and hard texture. Legend has it that when the ancient Romans first obtained crystal in the Alps, they thought it was changed by […]
1. colour The colorless crystal is clean and translucent as the standard. The color of the colored crystal itself should be uniform, pure and gorgeous. Amethyst and topaz are the more valuable varieties of crystals. The further classification of the two is the darker the color (but not dark as the standard) The better. В […]
The geological conditions for the formation of jadeite are strict. Studies have shown that the high-quality jadeite wall rock is high-magnesium, high-calcium, low-iron and high-sodium rock in a high-pressure and low-temperature geological environment with a temperature of about 150-300℃. The jadeite produced in this environment is of good quality. Обаче, the reality is not all […]
1. Divided by output status New pit material refers to the primary ore that is extracted from the mine manually without any transportation. The surface of the new pit material is fresh, no weathered crust, dense block shape, with edges and corners, often poor transparency, short water head, and relatively fresh color. Pit material is […]
People often say that gold is priceless and jade is priceless. As the mainstream of the Chinese jade market, the price of jadeite can be said to be very different. After years of market law, people have summed up the dimensions and standards of jadeite value. The quality evaluation of jade has five main aspects: […]
The so-called water head is a term used by the Chinese to evaluate the transparency of jadeite. Shuitou is a traditional Chinese folk name, and there is another name-kind, which actually means transparency. Като скъпоценен камък, transparency is of course the more transparent the better. There is also a saying in the industry: the layman […]
The clarity of jadeite is not the same as the clarity of gemstones, the main focus is on fissures. Emerald is famous for its multiple cracks. As the saying goes, “ten treasures and nine cracks” means that almost all jadeites are cracked, but the degree is different. Разбира се, we all like jade without cracks, […]