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Learn more about methods of crystal growth in our booklet below


Emeralds have been always among the most expensive colored minerals and the market's need for high-quality analogues of emeralds has resulted in elaboration of the materials, which possess all the physical, chemical and optic properties of the natural stone. Such crystals are internationally referred to as lab grown gems.


Alexandrite is a rare and valuable gemstone known for its remarkable color-changing properties. It is characterized by its ability to exhibit different colors under varying lighting conditions.


Ruby is a red variety of corundum.
At all times red color has been associated with strong emotions, passion and love, power, fire and blood. Therefore, the flame-red ruby is the most popular stone since ancient times.


Sapphire is a precious gemstone composed of the mineral corundum, primarily known for its rich blue color, though it also can be in various hues including yellow, green, and purple. It's one of the hardest gems.


With some degree of irony, spinel can be considered as one of the "youngest" gems. The naked eye finds it difficult to distinguish spinel from a ruby and red spinel was long considered a ruby before science established a clear distinction between these two types of minerals. 


RG Crystals offers variety of lab grown and synthetic opals. These man-made opals are composed of similar mineral components as their natural counterparts, such as silica spheres and water content.


Yttrium Aluminium Garnets (YAG) belong to a group of specially developed materials, which have been used in quantum electronics equipment and laser technology since the mid-20th century. Yttrium-Aluminum Garnet is the Y3Al2(AlO4)3 oxide, which has a cubic crystal structure of natural garnet.


Patented advanced technology of RG Crystals enables customers to not only acquire an emerald but also a complete range of other beryl colors such as red or pink bixbite, pale pink morganite, green beryl of any color saturation as well as blue-green aquamarine.


Cubic zirconia is one of the most common and well-known materials in the jewelry market. Zirconium oxide is a mineral that is extremely rare in nature, but is also extensively synthesized. As for its chemical properties, cubic zirconia is a zirconium dioxide (ZrO2) with additive compounds of the yttrium oxide.


Quartz is the most common mineral on the planet and the palette of quartz colors is very diverse. Apart from colorless or pure quartz, it can be a purple, orange, yellow, smoky, pink or black color. There is also a unique polychrome quartz, which is a crystal painted with two or more colors turning into each other.


At all times diamonds have been valued for their bright shine. Meanwhile, there is a natural crystal that superiors the "girl's best friend" with its own optical properties


Forsterite is a mineral belonging to the olivine group. It has various applications, including as a gemstone and in industrial processes.


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