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The Rhinestones Jewelry Is Popular Jewelry


Rhinestone material is often used as an alternative to diamonds. A rhinestone is a diamond simulant made from rock crystal, glass or acrylic.
Years ago, the originally rhinestones were a form of crystal rock gathered from the river Rhine. The availability was greatly increased since the invention of a good idea to imitate diamonds by coating the lower side of glass with metal powder. Hence, rhinestones are called Strass in many European languages. Rhinestones may be used as imitations of diamonds, and some manufacturers even manage a technique to reproduce the glistening effect as real diamonds have in the sun. By using the method of a thin, vacuum-sputtered metallic coating applied to crystal stones to produce an iridescent effect, was introduced in 1955. They tend to reflect whatever color is worn near it, and it is named after but also known as the "Northern Lights". The typically crystal rhinestones have been used on costumes, and jewelry. They are produced mainly in Austria by ‘Swarovski’ and in the Czech Republic by ‘Preciosa’. Thus in the US, these are normally called Austrian Crystal.

The high price of precious diamonds, as well as significant ethical concerns of the diamond trade, has created a large demand for materials with similar gemological characteristics, known as diamond simulates or imitations. Simulates are distinct from synthetic diamond, which unlike simulates is actual diamond, and therefore has the same material properties as natural diamond. Enhanced diamonds are also excluded from this definition. A diamond simulate may be artificial, natural, or in some cases a combination thereof. While their material properties depart markedly from those of diamond, simulates have certain desired characteristics—such as dispersion and hardness—which lend them to imitation. Well trained gemologists with appropriate equipment are able to distinguish natural and synthetic diamonds from all diamond simulates, primarily by visual inspection.

The most common diamond simulates are high-leaded glass (i.e., rhinestones) and cubic zirconia (CZ), both artificial materials. A number of other artificial materials, such as strontium titanate and synthetic rutile have been developed since the mid 1950s, but these are no longer in common use. Introduced at the end of the 20th century, the lab grown product moissanite has gained popularity as an alternative to diamond.

Diamonds are usually cut into brilliants facets to bring out their brilliance, the amount of light reflected back to the viewer, and fire, the degree of colorful prismatic flashes seen. Both properties are strongly affected by the cut of the stone, but they are a function of diamond's high refractive index of 2.417 and high dispersion of 0.044, as measured by the sodium B and G line interval. Thus, if a diamond simulant's RI and dispersion are too low it will appear comparatively dull or "lifeless"; if the RI and dispersion are too high, the effect will be considered unreal or even tacky. Very few simulants have closely approximating RI and dispersion, but even the close simulates can be separated by an experienced observer. Direct measurements of RI and dispersion are impractical (a standard gemological refractometer has an upper limit of about RI 1.81), but several companies have devised reflectivity meters to gauge a material's RI indirectly by measuring how well it reflects an infrared beam.

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