Cubic Zirconia Vs. The Genuine Diamond
Cubic Zirconia
In the past, people thought if their diamond could scratch glass, then it was genuine. Although this may be a harmful truth to actual gems, numerous fake diamonds do as well. Over the years, the workmanship of a diamond simulant, notably cubic zirconia selections, has been manufactured to fool a assortment of interested parties, including jewelers who use the naked eye as their guide towards genuineness. Nowadays, there's a large number of methods that assistant individuals that buy authentic diamonds and not fall victim to highly convincing fakes.
A significant part of noticing a real diamond is to distinguish the features that make cubic zirconia both alike and unlike from actual diamonds. For example, CZ has a hardness of 8.3 on the Mohs scale compared to the diamond's hardness of 10. Although CZ can come in colorised or colorless variations like actual diamonds, they're optically unflawed, whereas a diamond always contains some sort of blemish or defect in their composition.
Though trained gemologists are veterans in the techniques of detecting an imitation diamond, the untrained eye might also catch on to glaring inconsistencies. For instance, the color of a CZ might exhibit a gray tone when exposed to sustained quantities of sunlight. In many instances, individuals prefer to run particular tests on their diamond to make certain it is real. They wish to affirm authenticity by checking qualities, such as the weight, thermal conductivity, light diffusion, visual optics, refractive index, and grade of fluorescence. A range of diamond examinations exists with some better suited for unmounted diamonds than ones placed in a setting.
Many individuals have been able to detect cubic zirconia by marking their stone with a grease pencil or felt-tipped pen. Because natural diamonds attract grease and a CZ does not, a simulant will repel grease. The transparency of a stone is also helpful. If you are able to turn over your gem and read through it after laying it over newspaper, chances are you don't have a real diamond. It's crucial to know that this test is not 100% dependable, as some real diamonds are cut shallow and will flunk this test.
The facet edges of a stone also establish authenticity. A cubic zirconia oftentimes showcases chipping or somewhat rounded edges. When the edges of a stone are not distinct, you may suspect that your gem isn't a genuine diamond.
With the *fog test*, one may produce fog on their gem in the same fashion they'd a mirror. If the stone remains fogged for 2 to 4 seconds, you might have a CZ on your hands since a real diamond instantly dissipates heat before you'll be able to indicate fog. The disadvantage with this test is that accumulated dirt and oil on a stone will impact reliability.
Some people use the *U.V. test* to comb out diamond fakes and establish the worth of their gem. A high percentage of diamonds create the color blue when situated under a black light, otherwise known as ultra violet light. This is oftentimes a good test since 99% of all diamond simulants don't. Seeing a medium to strong blue color is a satisfactory indication that you have a diamond. On the downside, it also proves the worth of your gem. Diamonds with blue fluorescence are sometimes 20% less in value than those that don't. Consequently, not seeing blue fluorescence does not inevitably mean the stone is a cubic zirconia, but rather, might suggest a diamond with higher value.
Carat or gram scales come in handy to authenticate a diamond by examining its weight. Cubic zirconia weighs about 1.7 times more than diamonds under the same proportion and shape conditions.
With the *loop test*, visual features of a diamond are examined through a magnifying lens to base its true identity. One should look for the cuts of the diamond facets, check the girdle, frosty and faceted means diamond, waxy and glossy means it's a fake, spot small cracks and pinpoints or characteristics of a diamond, and locate setting stamps. Stamps that show 10K, 14K, 18K, 585, 750, 900, 950, PT, and Plat increase the chances of having a real diamond since CZ is not often set in genuine gold or platinum.
Overall, it's crucial to know that not all the tests and methods used to distinguish a CZ from a real diamond are 100% dependable and conclusive. Frequently, a diamond that passes an mixture of tests with flying colors can be trusted as a natural diamond.