Materials
Synthetic sapphires and rubies
We work with various types of synthetic sapphires produced through advanced processes to achieve specific optical, mechanical, and thermal properties. Below are the main materials and their characteristics.
Vernoil Sapphire
Vernoil sapphire, also known as Verneuil sapphire, is a synthetic version of sapphire created using the Verneuil process, which is the first commercially successful method for manufacturing synthetic gemstones. Here are the key properties of Verneuil sapphire.
Chemical Composition
Al₂O₃, identical to natural sapphire.
Physical Properties
Hardness 9 (Mohs scale), density 3.98-4.06 g/cm³, available in various colors.
Optical Properties
Weak pleochroism, high transparency, glassy reflections.
Applications
Jewelry, watches, scientific instruments.
Kyropoulos Sapphire
The Kyropoulos sapphire refers to synthetic sapphire crystals produced using the Kyropoulos method, a technique primarily used to grow large, high-quality single crystals of sapphire (Al₂O₃). This method is different from the Verneuil process and is more suited to applications requiring larger and purer crystals, such as in optics and electronics.
Chemical Composition
Al₂O₃ with minimal impurities.
Physical Properties
Hardness 9, density 3.98-4.06 g/cm³, high transparency, fewer defects.
Optical Properties
High optical quality, suitable for precision applications.
Applications
Optics, semiconductors, aerospace components.
EFG Sapphire
Edge-fed growth sapphire refers to synthetic sapphire crystals produced using the Edge-Defined Film-Fed Growth (EFG) method. This method is commonly used to grow large, high-quality sapphire crystals that are often used in industrial applications rather than as gemstones.
Chemical Composition
Al₂O₃, identical to natural.
Physical Properties
Hardness 9, density 3.98-4.06 g/cm³, high mechanical strength.
Optical Properties
High transparency, low level of birefringence.
Applications
Optics, semiconductors, medical devices.
HEM Sapphire
The Heat Exchange Method (HEM) is a technique used to grow large, high-quality synthetic sapphire crystals. This method is particularly known for producing crystals with excellent optical and structural properties, making them suitable for a wide range of industrial and technological applications.
Chemical Composition
Al₂O₃ with minimal impurities.
Physical Properties
Hardness 9, density 3.98-4.06 g/cm³, high heat resistance.
Optical Properties
Exceptional optical purity, high transparency.
Applications
Aerospace, medical devices, semiconductors.
Want more information about our materials?
We are proud of our products and different material properties. We will be happy to answer your technical and detailed questions about our synthetic sapphires and rubies.