1.To see the color. The most important factor in determining the price is the color. The green of the saffron is easy to yellow, while the blue is rare. Color concentration is also an important indicator. The light concentration can be called green calcium aluminum garnet at most. When the concentration is too deep, it will turn dark green, and the value coefficient will also fall. 2.To ...
Knowledge you need to know when buying sapphire "Sapphire" symbolizes loyalty, firmness, love and honesty. Starlight sapphire is also known as the "stone of fate." Sapphire is one of the top five gemstones. It is ranked third after diamonds and rubies. It is the birthstone of September and autumn. Sapphire and ruby are known as "sister gems." Today, let's talk about the knowledge you need t...
1.Color. The dark red orange topaz is the highest value of topaz, commonly known as the emperor topaz. The color is very precious and very rare. Pink topaz and yellow topaz are also common collector-grade topaz, while blue and colorless topaz are suitable for everyday wear, and the collection value is relatively low. 2.Cuts. Topaz is usually long or cylindrical, so it is generally cut into oval or...
The Difference Between Zircon and Diamond Zircon is a silicate mineral that is the main ore for the extraction of metallic zirconium. Zircon is widely found in acidic igneous rocks and is also produced in metamorphic rocks and other sediments. Zircon is chemically stable, so gem-grade zircon can also be found in the gravel of rivers. There are many kinds of zircons, and different zircons will have...
1.Color. The true agate color is bright and delicate, and the color and light of the fake agate are both worse. The natural red agate has distinct color and the bands are very obvious. When carefully observed, the dense arrangement of small red spots can be seen in the red bands. Although the dyed blue agate is bright and uniform in color, it does not look natural at first glance, giving a false f...
What are the colors of turquoise? Among the many gemstone types, Turquoise is not a gemstone with more colors. Although the hue of the colors is different, if all are summarized, the turquoise has only four colors of blue, green, yellow and white. Don't be confused by the name of turquoise, think that turquoise must be green. In fact, the coloring elements of turquoise are iron and copper. ...
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