Lab created stones, also known as cultured stones, are created in a laboratory setting using advanced technologies that mimic the natural processes that occur in the earth’s crust. These stones have the same chemical and physical properties as their natural counterparts but are usually more affordable and environmentally friendly to produce. The process of creating lab-grown rubies involves several steps. First, a tiny seed crystal of natural ruby is placed in a crucible, which is then filled with a mixture of chemicals that includes aluminum oxide, which is the main component of natural rubies. This crucible is then heated to very high temperatures, typically over 2,000 degrees Celsius.As the mixture in the crucible melts, the seed crystal acts as a template, causing the aluminum oxide to crystallize around it, forming a larger synthetic ruby crystal. This process can take several weeks or even months, depending on the size of the desired lab ruby.Once the lab ruby crystal has been grown, it can be cut and polished to the desired shape and size, just like a natural ruby. In fact, it can be difficult to tell a lab-grown ruby from a natural one with the naked eye, as the two can have very similar appearances.One advantage of lab-created rubies is that they can be produced in larger sizes and with greater clarity than natural rubies, which are often mined from the earth and may have impurities or inclusions. Lab-grown rubies can also be produced more sustainably, with less impact on the environment than mining natural rubies.In addition to their use in jewelry, lab-created rubies have many other applications. For example, they can be used in lasers, as they have properties that make them ideal for focusing light. They are also used in other high-tech devices, such as sensors and semiconductors, due to their unique optical and electrical properties.Gorgeous Pear Faceted Lab Created (Corundum) Pinkish Red RubyThis gem will fit in most of our same sized calibrated settings.Chemical composition : Al2O3Crystal Structure : TriagonalThermal properties: Melting point 2046°C Purity : 99.99% Refractive Index : 1.717 Density : 3.98-4.1 g/cm3 Hardness Mohs : 9Birthstone Month : July
Cubic Zirconia Pear Faceted AAA CZ Loose Stones 10 Colors (4x3mm – 18x13mm)
Cubic zirconia is a lab-created gemstone composed of zirconium dioxide. Gorgeous Pear Faceted AAA Rated Cubic Zirconia Stones With Top Cut & Polish. Although not as valuable as natural diamonds, cubic zirconia is still an excellent option for those looking for a more affordable alternative or for occasional wear.
Cubic Zirconia Oval Faceted AAA CZ Loose Gemstones 10 colors (4x3mm – 18x13mm)
Cubic zirconia is a lab-created gemstone composed of zirconium dioxide. It is a popular diamond substitute due to its comparable appearance at a lower cost. CZ is produced by heating zirconium oxide powder with stabilizers and pigments, then cooling it slowly to create a crystal.CZ is a durable material that can be cut and polished to resemble a diamond. It is scratch-resistant and comes in various colors, making it a common choice for jewelry like rings, earrings, and necklaces.Although not as valuable as natural diamonds, cubic zirconia is still an excellent option for those looking for a more affordable alternative or for occasional wear.Gorgeous Dark Amethyst Oval Faceted AAA Rated Cubic Zirconia Stones With Top Cut & Polish Hardness: CZ is a very hard material and has a hardness of 8.5 on the Mohs scale. This makes it a durable material that can resist scratches and abrasion.Density: CZ has a density of about 5.7 g/cm3, which is slightly lower than that of natural diamonds (which have a density of about 3.5 g/cm3). This means that CZ is slightly less dense than diamonds and can be differentiated from them based on its weight.Thermal conductivity: CZ has a relatively low thermal conductivity compared to natural diamonds, which means that it does not conduct heat as well. This property can be used to distinguish CZ from natural diamonds using a thermal conductivity meter.Refractive index: CZ has a high refractive index of around 2.15, which is higher than that of most natural gemstones. This gives it a high level of brilliance and sparkle.Optical properties: CZ is optically isotropic, which means that it has the same optical properties in all directions. This is in contrast to natural diamonds, which are anisotropic and have different optical properties in different directions.