Hello, the testing organization is only responsible for testing the authenticity and will not make any evaluation on the appearance. Therefore, if you want to prove that the bracelet itself is cracked, the testing agency can't help you. Even if they can respond to your request and help you point out that there is a crack in the bracelet, it cannot be used as evidence.
A cracked jade bracelet can be certified! The jade bracelet can issue the authoritative appraisal certificate of natural jade A, and the following tests should be avoided: the following national testing standards are required for jade testing: 1, and the secret test: 33 ~ 34 g/cm3.
There is no agency to do this kind of testing, and experts see that the old and new traces are different.
Filling and dyeing are not necessarily related. My friend, the original jade stone itself is cracked. I suggest you contact more and know more about jewelry. Especially the jade bracelet you bought still has an appraisal certificate. If this certificate is not forged, then the naturalness of the jade bracelet is more credible.
The jade bracelet you just bought has cracks. You can choose to keep the original jade bracelet, shopping voucher and jewelry store for return service.
Buying a jade bracelet with a certificate is not necessarily true. The jade bracelet has a certificate. When consumers buy it, don't think it is foolproof. In this era of advanced technology, everything may be false. When we identify the authenticity of jade jewelry, we should also identify the authenticity of jade bracelet certificate.
How to identify whether jadeite has cracks?
1, transverse crack is commonly known as fracture. A transverse crack refers to a crack extending from one side of the bracelet surface to the other. Transverse cracks are usually short and inconspicuous, but the cracks are deep, which seriously affects the firmness of jade bracelets. Longitudinal crack is commonly known as twill, and Cantonese people call it "_ abdominal crack".
2. When judging jadeite cracks, you can identify them by touching them with your hands or by observing them with a magnifying glass.
3. The crack of jadeite is caused by the impact, blow and destruction of jadeite when people are mining, processing or wearing jade materials. Generally speaking, the cracks in jadeite are visible to the naked eye. When you scrape jadeite with your nails, you can obviously feel that the cracks are blocked. When illuminated by strong light, the light will be blocked.
4, structure, identification of jadeite cracks can see the structure, carefully observe the surface of jadeite with a magnifying glass, the crack is an open structure, there are clear cracks, if it is a stone, it will show a linear structure similar to bread, very clear.
5. Choose a flashlight or perspective lamp with appropriate width to illuminate jade. Under the irradiation of light, the internal structure of jadeite original stone will be revealed. If there are cracks, we can see them with the naked eye.
6. From the perspective of reflected light and light transmission, if the jade is laid flat on the table, you can see that the gap is divided into cracks. Whether jadeite has cracks needs to be observed by reflected light and transmitted light respectively.
Identification of cracks in jade bracelets How can we tell whether there are cracks in jade bracelets?
Texture. Scrape the jade bracelet gently with your nails. If you can feel the blocked texture, that texture is the crack of the jade bracelet, indicating that the jade bracelet is broken. Color.
Look at the jade bracelet for cracks. Generally, you can look at it with your eyes or touch it with your hands, pinch the striped part of the bracelet, and then look at the internal structure of the jade through the light, so it is easy to see whether there is any crack in the jade.
Transverse crack is commonly known as fracture. A transverse crack refers to a crack extending from one side of the bracelet surface to the other. Transverse cracks are usually short and inconspicuous, but the cracks are deep, which seriously affects the firmness of jade bracelets. Longitudinal crack is commonly known as twill, and Cantonese people call it "_ abdominal crack".
Scrape a place that feels like a crack with your nails. If you obviously hook your nails and feel a pause, it is basically a crack. Scrape a place that feels like a crack with your nails. If you obviously hook your nails, you feel paused, or you feel jumping when scraping, it is basically a crack.
You can put the jade in the sun, observe the inside of the jade and identify whether there are obvious cracks in the jade. If the crack is not obvious, you can directly illuminate the inside with a flashlight, and obviously see the internal crack of jadeite. It should be noted that cracks in jadeite should be distinguished from stone patterns, and stone patterns cannot be judged as cracks.
How to tell whether Thangka is true or false, good or bad?
1, Thangka's identification relies on meticulous technology and pigments. Good thangka, the hook line is a stroke, evenly colored, which has an impact on the momentum. A kind expression looks like a smile, but an angry expression is dignified. Some old fake thangkas have also entered people's field of vision.
2. Thangkas from temples and aristocratic families are of high value. The identification method is to see whether the process is meticulous and whether the pigment is natural. The sleeve of Thangka scroll from the nobility is pure silver, and the edge of Thangka is silk brocade.
3. The printed Thangka color is fuzzy and even, especially at the junction of the five senses and the other two colors. The canvas printed with Thangka is much harder than the canvas used to draw Thangka, and it has the feeling of plastic tarpaulin, which needs to be carefully distinguished with eyes. In terms of measurement.
How to identify genuine cracks on jade bracelets?
Look through the light and touch it with your hand to see if there is any crack in the jade bracelet. To judge whether there is a crack in the jade bracelet, you can pinch the part of the bracelet and then look at the internal structure of the jade through the light in the bright place, so it is easy to see whether there is a crack in the jade.
Whether there is a crack in the jade bracelet can be identified by three methods: lighting, touching the feel of jade and watching the formation of jade patterns. The stone pattern of jade bracelet can be clearly identified under the irradiation of transmitted light, but not under the irradiation of reflected light; Cracks can be seen under white light reflection.
It is easier to observe the existence of cracks by pressing the bracelet stripes with two fingers and looking at the bright places with perspective light. At the same time, the cracks of the jade bracelet can be observed more clearly by pressing the stripes of the bracelet with your fingers and rotating it once with a magnifying glass.
Scrape a place that feels like a crack with your nails. If you obviously hook your nails and feel a pause, it is basically a crack. Scrape a place that feels like a crack with your nails. If you obviously hook your nails, you feel paused, or you feel jumping when scraping, it is basically a crack.
When illuminated by light, the stone lines of the jade bracelet are invisible under reflected light, but cracks are visible under white light reflection. Touch the jade, the stone hand of the jade bracelet can't touch it, but the crack is easy to touch.
The cause of the crack. There are many reasons for the cracks in jadeite. For example, jadeite may be destroyed by external forces during mining, or jadeite may be destroyed artificially during processing. Collection value.
How to identify cracked jadeite how to identify cracked jadeite
1, transverse crack is commonly known as fracture. A transverse crack refers to a crack extending from one side of the bracelet surface to the other. Transverse cracks are usually short and inconspicuous, but the cracks are deep, which seriously affects the firmness of jade bracelets. Longitudinal crack is commonly known as twill, and Cantonese people call it "_ abdominal crack".
2. To identify whether there are cracks in jadeite, you can put jadeite in the sun to observe the inside of jadeite and identify whether there are obvious cracks in jadeite. If the crack is not obvious, you can directly illuminate the inside with a flashlight, and obviously see the internal crack of jadeite.
3, structure, identification of jadeite cracks can see the structure, carefully observe the surface of jadeite with a magnifying glass, the crack is an open structure, there are clear cracks, if it is a stone, it will show a linear structure similar to bread, very clear.
4. The crack of jadeite refers to the destruction of the internal structure of jadeite by the external force, which is generally invisible on the surface. It is usually judged by using a flashlight to shine through the light and observing whether there is a substance in the jade to block the light.