What does A-grade jade mean? The simplest way to identify jade

So what is the authenticity of jade? In fact, in the jade industry, they are called A-grade jade, B-grade jade, and C-grade jade.

What is A-grade jadeite?

Grade A jade is pure natural jade, which refers to jade that has only been carved and polished without any chemical treatment, high heat, high pressure or other artificial falsification. A-grade jadeite is natural in color and has never been dyed. When observed with the naked eye, it has a fine texture, soft color, and obvious stone patterns. It makes a crisp and pleasant sound when lightly bumped; it feels heavy in the hand and is clearly different from other stones.

B-grade jade is a product that is made from natural jadeite raw stones through later artificial processing. Its essence is still jadeite raw material, but because its texture is not good enough and there are more impurities, merchants beautify it in order to achieve sales purposes. Usually soaked in strong acid, injected with transparent resin, polishing powder, etc.

C-grade jade is a general term for jade that has been artificially colored. Adding color to dye satisfies people's pursuit and love of jade color, but it will cause the color to fade.

D-grade jade is actually not jade at all, but is made of cheap jade, glass or even plastic to imitate jade. Common imitation jadeites in the market include Australian jade, jasper, Malayan jade, amazonite, Xiuyan jade and water jade.

Here is an introduction to the most common counterfeit goods.

Australian Jade (Chrysoprase) Chrysoprase is a low-grade gemstone. The English word chrysoprase comes from the Greek "chrysos" and "prason". It is a fibrous quartz containing nickel, usually apple green, but there will be differences in shades. Although the colour is green and bright, the green is not solid. The green is evenly distributed, giving it a floating feel, and a tender feel amidst the brightness. When viewed through a magnifying glass, Australian jade (green chalcedony) does not have orange peel. Australian jade (green chalcedony) is lighter than jadeite. It is a variant of quartz and is a silicon-oxygen mineral with the same physical properties as quartz.

Shuimo jade is the common name for albite jade and quartzite jade among the people; it is also commonly known as "Shuimozi" in the China-Myanmar border area where it is produced; the local people in Tengchong and Ruili on the China-Myanmar Yunnan border call water flowers "Mozi", because Shuimo jade has the property of being crystal clear, it is given this name. Shuimozi usually has good water head, with some cotton components mixed in the transparent or translucent solid jade. The overall appearance is grayish white or white, hence the name "Shuimozi". Due to these characteristics, it is extremely similar to ice jadeite. When it is processed into pendants or bracelets and sold as jade jewelry, most people cannot distinguish the authenticity.

Hornblende is a black jade that looks like emerald green. To the naked eye, it appears pure black or dark green. It is opaque, but has a strong luster and visible green spots. Grossular and hydrogrossular garnet that impersonate jadeite are very deceptive, especially the yellow hydrogrossular garnet, which is often sold by merchants as higher-grade yellow jadeite. When observed with the naked eye, the base color of grossular garnet is white or light white, with a granular structure. There are many green spots or occasional green patches on the base. It is slightly transparent or opaque, and it has no emerald green properties. Grossular garnet is produced in Myanmar, as well as in Qinghai and Xinjiang of my country, and is commonly known as "Qinghai Jade". Hydrogrossular garnet: This type of jade is called "tumbler" in the industry. It is a polycrystalline aggregate of grossular garnet, also known as South African jade or Deranva jade. It has a glassy luster, poor water head, and is translucent to slightly transparent, with generally good transparency. The mineral composition of South African hydrogrossular is hydrous grossular garnet and varying amounts of fengshui garnet.

Grossular garnet, hydrogrossular garnet, and Fengshan stone are all very similar to "jade", and sometimes it is difficult to distinguish them, which can easily deceive people. They are definitely not jade, but killers pretending to be jade.

Dushan jade is produced in Dushan, Nanyang, Henan Province. It is also called "Nanyang jade" or "Henan jade". It is commonly found in yellow, green, white, cyan, purple, red, black and other colors. It is characterized by rich colors and uneven distribution.

Prehnite is a silicate mineral that is commonly green in color. Both transparent and translucent are available.

Prehnite is a silicate mineral that usually appears in cavities in volcanic rocks and can sometimes be seen on stalactites. The color of peridot ranges from light green to gray, and there are also shades of white, yellow, and red, but the most common color is green, and it comes in both transparent and translucent forms. Their shapes include plate-like, flake-like, grape-like, kidney-shaped, radial or block-like aggregates. Grape stone is a glass-like variety of the finest jadeite, produced in Luzhou, Leshan and other places in Sichuan Province.

Quartzite jade is also known as dense jade, noble jade, aventurine, Jingbai jade and new jade. It comes in colors such as green, emerald green, blue-green, blue-purple, and light purple. Most of it is produced in China. It is a cheap stone. Remember, it is not jade. .

Malayan jade has no color roots when light is transmitted through it, and its color is dull, bright and unnatural. Malayan jade is lighter than jadeite.

Amazonite is relatively soft, and metal can leave obvious scratches on its surface; the specific gravity of amazonite is relatively low, only 2.53-2.56, which is far from jadeite; the green color of amazonite generally has a blue tint; the transparency of amazonite is poor, and very few can have a transparency higher than that of jadeite icy type.

The density of Xiuyan jade is relatively low at 2.5-2.8; when observed under magnification, it is difficult to see the granular structure and it does not have the orange peel-like surface of jadeite; the crystals of Xiuyan jade are relatively small, and flaky or fibrous directional growth structures can be seen at the fracture.

What is the easiest way to identify jadeite?

The easiest way to identify jadeite is to check the appraisal certificate. The appraisal certificate will specifically indicate A-grade jadeite. If it only has the word "jadeite" written on it, it may be BC-grade jadeite that has been artificially processed. Regular merchants will usually proactively show certificates when customers buy jade. The certificate records all the information about the jade jewelry. There is a phone number on the back of the certificate. Just call the number and the receptionist will ask you to tell him the certificate number. Then she will tell you all the information about the jade jewelry you purchased! If you still don’t have confidence, you can go to the local quality inspection bureau to do a test! Or redo a certificate! Taking it for identification is the most convenient and effective method. If you take it to an appraisal agency for appraisal, they can basically determine whether the jade is real or fake with extremely high accuracy.

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