Natural Sapphires - Leura Jewels

Sapphire is the birthstone of September and its metaphysical properties include wisdom and power.

Ceylon Sapphire is strong and sturdy. Combined with its lustrous beauty it’s ensured the jewellery it’s transformed into is not only eye catching but will last a lifetime.

Natural sapphire gemstones are a variety of the mineral corundum, an aluminum oxide (Al2O3). They are renowned for their stunning colors, which range from the classic blue to pink, yellow, green, and even colorless. Here are some key points about natural sapphire gemstones:

Origin and Formation

Geological Formation: Sapphires form in metamorphic and igneous rocks under high pressure and temperature conditions. They typically form in locations with rich aluminum content and low silica levels.
Mining Locations: Major sources of natural sapphires include Sri Lanka (Ceylon), Myanmar (Burma), Madagascar, Thailand, and Australia.

Colors and Varieties

Blue Sapphires: The most well-known and highly prized, with shades ranging from deep royal blue to lighter cornflower blue.
Fancy Sapphires: These include all colors other than blue, such as pink, yellow, green, purple, and orange.
Padparadscha: A rare and valuable pinkish-orange sapphire, highly prized for its unique and delicate color.
Star Sapphires: These exhibit asterism, a star-like pattern on the surface due to needle-like inclusions within the stone.

Treatments and Enhancements

Heat Treatment: Commonly used to enhance color and clarity. It's an accepted practice in the gemstone industry and should be disclosed.
Diffusion Treatment: Involves adding elements like beryllium to change the color of the sapphire. This treatment can significantly alter the stone and must be disclosed to buyers.

Evaluation and Quality Factors

Color: The most important factor. Pure, vivid, and saturated colors are highly valued.
Clarity: While inclusions are common in sapphires, those with fewer and less visible inclusions are more valuable.
Cut: Quality of the cut affects the stone's brilliance and overall appearance.
Carat Weight: Larger sapphires are rarer and more valuable, but the other factors also play a crucial role in determining the overall value.

Historical and Cultural Significance

Historical Use: Sapphires have been cherished for centuries, often associated with royalty and nobility. They are featured in many famous pieces of jewelry, including engagement rings and royal regalia.
Symbolism: Traditionally, sapphires are believed to symbolize wisdom, virtue, and good fortune. They are also considered protective stones.

Care and Maintenance

Durability: Sapphires are very durable, with a hardness of 9 on the Mohs scale, making them suitable for everyday wear.
Cleaning: They can be cleaned with warm soapy water and a soft brush. Ultrasonic cleaners are generally safe unless the stone has been fracture-filled.

Natural sapphires remain a timeless choice for jewelry lovers and collectors due to their beauty, durability, and rich history.