Quartz and other synthetic crystals

Besides cubic zirconia and leuco sapphire, our company offers other synthetic crystals for technical and jewelry applications.
  • Synthetic quartz – doped and colorless
Synthetic quartz grown using the hydrothermal method is widely used in jewelry. This applies in particular to its colored sorts. Optical and piezoelectric quartz has technical applications, such as in personal computer production, optics and telemetry, digital video- and photo-cameras, radio- and telecommunication devices, remote and automatic control systems, radar and radio-navigation equipment, for high-quality wafers, and in watch manufacturing.

Chemical Formula: SiO₂
Hardness (Moh’s scale): 7
Density: 2,65
Refraction Index: 1,544 – 1,553
Dispersion: 0,013
Crystal Lattice: trigonal
Dielectric Constant: 4,5
Phase Transition Temperature: 573°C

Quartz plates
  • YAG (yttrium aluminum garnet) – doped and colorless
Yttrium aluminum garnet grown using the Czochralski and HDS methods has applications in jewelry, in laser equipment and electronics. We offer deep blue, green, pink, yellow, white and colorless YAG crystals.


Chemical Formula: Y3Al5O12
Hardness (Mohs scale): 8,5
Density: 4,55 (on average)
Index of Refraction: 1,832
Dispersion: 0,028
Crystal Lattice: cubic
  • Titanium oxide
Synthetic mono-crystals of rutile (titanium oxide) are usually grown using the Verneuil process. Depending on dopant choice, rutile can be of different hues ranging from amber-yellow to blue-black. Colorless rutile has a slightly straminious hue. Jewelry is its principal application, although rutile can be used as a high temperature rectifier and for manufacturing quantum light generators.


Chemical Formula: TiO2
Hardness (Moh’s scale): 6 – 6,5
Density: 4,2 – 4,3
Crystal System: tetragonal

  • Strontium Titanate
Synthetic strontium titanate crystals are used in jewelry, used as a ferroelectric ceramics component, and for thin film growing wafer manufacturing.


Chemical Formula: SrTiO3
Density: 5,13
Index of Refraction: 2,41
Crystal Lattice: cubic

  • Alexandrite of Czochralski – colored and colorless
Synthetic alexandrite grown by the Czochralski method has applications in jewelry and laser manufacturing.


Chemical Composition: BeAl2O4 + Fe, Ti
Crystal Lattice: orthorhombic
Hardness: 8,5
Refraction Index: 1,7 – 1,8
Density: 3.8

Czochralsky alexandrite