News

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,...

Emerald is a distinctly green gem quality variety of the beryl mineral family, which is traditionally associated with the birthday month of May and 55th anniversary. Emerald is one of the most desirable, rare and expensive gemstones and it has been the standard for green among coloured stones for thousands of years. The trend of high demand, high cost, the lack of standard pricing and a limited supply of natural emeralds, has prompted a development of synthetic emeralds and the popularity of costume jewellery at low cost, which has encouraged the use of emerald imitations. Hydrothermal synthetic emeralds and flux-grown...

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...