jewelery storespearl jewelry setdiscount fashion jewelry Identification of Ruby and Diamond Ruby Natural gemstones "Ten Red 9 crack", with no flaws and cracks in natural ruby ??is extremely rare. The artificial ruby color, an internal defect or less crystalline inclusions, clean, large blocks. As precious stones on the market more than 3 kt or more natural ruby ??is very rare, encounter a large block of ruby, it is necessary to draw attention, because natural than synthetic ruby ruby thousand times higher than the value of the slightest negligence will "medicine." discount fashion jewelry There is a strong natural ruby ??"dichroic", the so-called two-color, ie, from a different direction with two kinds of red and orange hues, if there is only one color, it may be red spinel, garnet or red glass and so on. Natural ruby red spinel is very similar, nihao2013808 the two most likely to be confused, it must be especially careful. Diamond pearl jewelry set Diamond is the hardest natural substance material, diamond can characterize any other gemstones, but the other does not move any gem diamond but had carved. You can also use the "standard hardness" characterization, where the hardness is less than 9 degrees are fake diamonds. Diamond also has a lipophilic, such as the pen to draw a line in the diamond surface, then into a continuous line, and other precious stones were intermittently interrupted line. Diamond in the identification of the above methods have a certain reference value. But also through a magnifying glass 10 times, 10 times in under a magnifying glass, the majority of the diamond visible flaws, there is a triangle of growth pattern, the diamond surface, "red, jewelery stores orange, blue" colors such as "Fire" light. Shine. The most accurate and reliable way is to use "thermal conductivity meter", measuring the thermal conductivity of the data to distinguish between true and false diamond, but "thermal conductivity meter" expensive.