News — Imitation

Rubies are one of the most valuable gemstones in our planet. Together with sapphire they are part of the corundum mineral family. Ruby is the traditional birthstone for July and for the 40th wedding anniversary. The physical properties of rubies are the same as those of all corundums, whether natural or synthetic: Mohs hardness of 9, refractive index of 1.76-1.77, and specific gravity of 3.97-4.05 g/cm³. SIAMITE® ruby reflections are significantly inferior to corundum in all three parameters, with values of 7.5, 1.62-1.63, and 3.0-3.3, respectively. However, other ruby imitations, such as optical or crystal glasses, cubic zirconium, and others,...

SIAMITE® is lead-free and compliant with the strictest regulatory industry norms and laws regarding the restriction or prohibition of certain substances. The production process is virtually waste-free and environmentally friendly - akin to glass production, all low-quality or defective products are recycled as additives to the production charge. Energy for production comes solely from electricity, resulting in no carbon dioxide emissions into the atmosphere. As reserves of natural gems dwindle and their value increases, mining them causes irreparable damage to nature. Consumers are increasingly aware of this and are prioritizing environmentally friendly products. A notable jewelry brand recently switched from...

As follows from the part 5, the SIAMITE® completely replicate the brightness, color, and density of the most widely used gemstones. In connection with this, a common question arises – how to distinguish faceted SIAMITE® stones from natural gemstones? This question is quite relevant, as many buyers of our stones have already turned to gemological laboratories in many countries worldwide and received incorrect conclusions – “glass”, “special glass”, “natural tourmaline”, “topaz” … Gemologists worldwide have a standard set of criteria for identifying gemstones: color, refractive index, density, magnification, absorption spectrum, fluorescence. However, the nature of SIAMITE® glass-ceramic makes classic gemological...

The complete catalog of transparent SIAMITE® gemstone reflections include about 780 different colors and shades (Fig. 4,5,6), along with more than 200 translucent and opaque varieties (Fig.7). They are part of 104 transparent color groups (groups of emeralds, blue topazes, sapphires, rubies, tourmalines...) and approximately 50 translucent and opaque groups (groups of turquoise, moonstones, lapis lazuli, jadeites...). Figure 4. SIAMITE® reflections of the most common natural gemstones. The ability to produce many colors, shades, and saturations is another unique feature of SIAMITE. This allows for the creation of a wide range of imitations of natural gems from different deposits: emeralds...

The physical properties of SIAMITE® gemstone reflections (hardness 7.5-8, density 2.9-3.3 g/cm3, RI = 1.60-1.63) are optimally close to such natural gemstones as tourmaline, topaz, and emerald (see the attached Table 2). The quartz group (amethyst, citrine, smoky quartz, etc.) lags behind Siamite® in all three indicators, while corundum, spinel, and garnet have higher densities and refractive indices. Corundum surpasses Siamite® and all other gemstones in hardness.   It is known that many natural and synthetic crystals and glasses cannot be used for the "Setting Stones in Wax" method because they crack or change color under the influence of a...