Identification of diamond
Sherry Huang
www.boreway.net
2016-01-26 15:16:55
SocietyJewelryUnder increased diamond demand, synthetic diamondAnd other posing diamond market continues to expand charge, and even some jewelry operator could not tell. Here are some simple methods to identify the authenticity of diamonds:
Single refraction
Diamond single refraction is due to the essential characteristics of the diamond decision. And other natural stones or artificial stonesMostly of double refraction. Fake diamonds under 10x magnifying glass from the front slightly oblique perspective, it is easy to see that the ridge line overlapping images, and also exhibits two bottom light.BirefringenceSmall differences such as white stoneEtc., can also be seen at the end of light overlap Movies
Adsorption
Diamond grease and dirt have some affinity, that diamonds can easily be adsorbed oil. Thus, with a finger touch diamond will feel tackiness, fingers seem to have slimy feeling. This is not any gems. This approach needs to be trained in order to grasp the subtle wherein
Straight line features
Polished diamond surface is very smooth. With a pen dipped in ink across the diamond, if real diamonds, leaving the surface is a smooth continuous line, characterized by straight line. Counterfeit goods leaving a line consisting of a bullet. This method should be observed by means of discharge
Adamantine luster
Roughly 100 degrees of incandescentLight, Cutting good diamonds and counterfeit goods compared with each other, it is easy to see which has the adamantine luster. This method should not be in too dark or too strong
Density Detection
Diamond has a density of about 3.5 grams per cubic centimeter, and other "suspected diamond," the density is generally from about 3.25 grams per cubic centimeter, withMethylene iodide solution(Its density is 3.35 g) soaked "suspected diamond," as it was floating, sinking is a diamond.
