Lab Created Star Sapphire
Lab Created Star Sapphire – Synthetic Star Sapphire Gemstones
If you are looking for a special star sapphire gemstone, check our selection of star sapphire cabochons below. We have high quality, blue colored. loose sapphire cabochons available at affordable prices.
COLOR: Star Sapphire is Light to Dark Violet color
CHEMICAL COMPOSITION: Al2O3 (Aluminium Oxide)
CUT: Heart Cabochon, Marquise Cabochon, Oval Cabochon, Pear Cabochon, Round Cabochon
SPECIFIC GRAVITY: 3.95-4.1
REFRACTIVE INDEX: 1.762-1.77
BIRTHSTONE: Star Sapphire is the birthstone of
UNUSUAL PROPERTIES: Synthetic star sapphire exhibits the optical phenomenon called asterism, a star-like pattern created on the surface of a gemstone when light encounters parallel fibrous, or needle-like, inclusions within its crystal structure. Light that strikes the inclusions within the gem reflects off of the inclusions, creating a narrow band of light. When two or more intersecting bands appear, a star pattern is formed.
TREATMENT: The flame fusion process for creating gems, also called the Verneuil process, is the most affordable and common synthesis method for sapphire. Powdered chemicals (the building blocks of the gem) are dropped through a high-temperature flame. The molten powder repeatedly falls from the flame onto a rotating pedestal, creating a synthetic crystal, called a boule, which can later be faceted into a gemstone. Synthetic gems have the same chemical, optical, and physical properties of their natural counterparts, but are a more cost-effective alternative to a natural gem.
USAGE: Earrings, bracelets, beads and any other jewellery
WHAT WE SUPPLY: Best quality Lab Created Star Sapphire in different cuts and sizes