Consumers how to identify whether a natural diamond?
4/19/2016
How to distinguish the synthetic diamonds
Method One: refractive index. Ground glass fake diamonds are easily distinguished because of its low refractive index, there is no kind of real diamonds flashing colored light, slightly experienced people see at a glance. Method two: internal and external microscopic characteristics. Synthesis of diamond crystal surface often show unusual patterns of dendritic growth in the {100} plane visible residue quadrilateral seed wafer. Within synthetic diamonds can often see tiny iron or iron-nickel alloy catalyst metal inclusions, observed under these parcels substantially reflective metallic luster under the conditions.
Method three: hardness and thermal conductivity. Synthetic diamonds are relatively low in hardness, thermal conductivity is much lower than in diamond, diamond accurately tell the difference with the instruments.
How to identify CVD synthetic diamonds
Synthetic Diamonds: HPHT synthetic diamonds mostly Ⅰb type; CVD synthetic diamonds are type Ⅱ. Mainly used to distinguish change color diamonds. But
the law itself from scientific and technological development point of
view, all the instruments are not likely to become the ultimate weapon. Literature
data show that there are more large-scale instruments and methods for
the detection of synthetic diamonds and optimization of treatment
methods, for example, liquid nitrogen cooling technology for visible
light absorbance detector, infrared spectroscopy, photoluminescence
spectroscopy, Raman spectroscopy, cathodoluminescence and so on.Synthetic diamonds can be irradiated and high pressure treatment to obtain a variety of bright colors. Press
the norm, rhinestones need diamond waist marked "artificial" character,
either English or Chinese, and of these more than 100 tablets of
synthetic diamonds is not Liangmingshenfen, suppliers have not come with
any product description, the current both at home and abroad artificial diamond processing base, processing place quite hidden. Diamond
difficult to distinguish between true and false, the sale of diamonds
on the market often come with certificate of authenticity issued by
professional bodies. The
old method of detecting easily "Fudge", so industry experts remind
consumers, cheap rhinestones nearly two without a potential hedge
against inflation, buying diamonds should see third-party testing
certificate.
The difference between natural diamonds and synthetic diamonds
With diamond prices continue to rise, more and more fiery collection of investment diamonds. So some unscrupulous profiteers began to impersonate natural diamonds synthetic diamonds. But the difference between natural diamonds and synthetic diamonds is very difficult, because the synthetic diamonds and natural diamonds are made of carbon atoms, arranged in the same crystal lattice, the same physical properties, differ only in crystal defects. However, due to the different synthetic diamonds and diamond growing environment, the market most of the synthetic diamonds will exhibit other non-white color, and this point is easy to depart.
Welcom to Hwatien ,Hwatien is a leading acrylic stone manufacturer in Taiwan for over years experiences. Acrylic rhinestone is widely used in the field of fashion accessories, such as belt buckle, imitation jewelry, necklace, bracelet, earrings, hair ornament.
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