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DIMENSIONS:

7.1x4.5x3.4 MM

7.1x4.5x3.0 MM

Purple sapphires, also known as violet sapphires, are a type of gemstone from the corundum mineral family, known for their rich purple hues that range from pinkish-lilac to deep violet. These sapphires are prized for their beauty, durability, and rarity, making them popular choices for jewelry, especially engagement rings.

Here's a more detailed description:

Color and Appearance:

• Purple sapphires exhibit a range of violet hues, from light lavender to deep, rich violet.

• The color is caused by trace amounts of elements like iron and titanium within the corundum's crystal structure.

• They can be transparent to nearly opaque, with a glassy luster that enhances their brilliance.

• Some purple sapphires display pleochroism, meaning they can show different shades of purple when viewed from different angles.

Properties and Characteristics:

• Hardness: Purple sapphires score a 9 on the Mohs hardness scale, making them highly durable and suitable for everyday wear.

• Crystal Structure: They have a hexagonal (trigonal) crystal structure.

• Chemical Composition: They are composed of aluminum oxide (Al2O3).

• Refractive Index: Their refractive index ranges from 1.76 to 1.77.

• Density: They have a density between 3.99 to 4.1.

• Cleavage: Purple sapphires lack cleavage, meaning they don't break along specific planes.

• Fracture: They have an uneven, conchoidal, or splintery fracture.

• Luminescence: Under UV light, some purple sapphires can exhibit fluorescence, with deep violet stones glowing bluish-white and lilac to purple stones glowing orange, red, or blue.

• Birefringence: They have a birefringence of 0.008 to 0.009.

• Dispersion: Their dispersion is 0.018.

• Asterism: Some purple sapphires may exhibit asterism, appearing to have a star-like pattern on their surface.

Rarity and Value:

• Purple sapphires are considered rare, especially those with a deep, rich violet hue and good clarity.

• Their value is influenced by factors like color saturation, clarity, and the presence of any unique optical effects like asterism or color change.

Symbolism and Meaning:

• Purple sapphires are often associated with wisdom, nobility, spirituality, and mental clarity.

• They are believed to promote emotional balance and inner peace.

• In some cultures, purple sapphires are considered symbols of royalty and spiritual enlightenment.