Blue Star Sapphire

Lab Created Star Sapphire – Linde Star Sapphire – Lab Grown Star Sapphire

Star sapphire

What is a Linde star sapphire?

Linde star sapphire is also known as synthetic star sapphires that display asterism. Since the first synthetic star sapphires were manufactured by Linde Air Products Company, it is widely known as linde star sapphire in the gem industry.

If you are looking for a special star sapphire gemstone, check our selection of star sapphire cabochons in this section. We have high quality, blue colored. loose sapphire cabochons available at affordable prices.

• Color: Star Sapphire is Light to Dark Violet color
• Chemical Composition: Chemically, Linde Star Sapphire is an Al2O3(Aluminium oxide that forms trigonal crystals).
• Cut: Heart Cabochon, Marquise Cabochon, Oval Cabochon, Pear Cabochon, Round Cabochon
• Specific Gravity: 3.95-4.1
• Refractive Index: 1.762-1.77
• Hardness: Linde Star Sapphire has no unique cleavage and has a hardness of 9 on the Mohs scale. Chemically, star sapphire is an aluminum oxide and forms as trigonal crystals.

Birthstones

Star Sapphire is the birthstone of the people born in September.

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 a star sapphire stone. 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 as 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 stone in different cuts and sizes.