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Gemstone Information

Gemstone: Natural Blue Sapphire
Certification: GFCO Swiss Lab Certified
Weight: 13.57 Carats
Color: Royal Blue
Treatment: Heat Treated
Birthstone: September
Hardness: 9 on the Mohs Scale – Excellent for all types of jewelry
Specific Gravity: 3.95–4.03
Refractive Index: 1.760–1.778

Discover the Brilliance of Natural Blue Sapphire

This natural 13.57 carat Blue Sapphire showcases a rich, vivid blue color that sapphire lovers seek worldwide. Certified by GFCO Swiss Lab, this gemstone offers both beauty and assurance of authenticity. Its impressive size, vibrant hue, and classic treatment make it an exceptional choice for fine jewelry or a serious gemstone collection.

Features and Details

Color

A strong, vivid blue with excellent saturation and depth. The color is bright yet balanced, displaying the timeless elegance associated with high-quality sapphires.

Clarity

Natural inclusions may be present, consistent with genuine sapphires. These internal features confirm the stone’s natural origin and add character without detracting from its visual appeal.

Cut

Expertly faceted to maximize brilliance, color distribution, and light performance. The cut enhances the sapphire’s depth and luster, allowing it to stand out in any setting.

Treatment

This sapphire has undergone standard heat treatment, a widely accepted and permanent enhancement in the gemstone industry. Heat treatment:

• Improves color vibrancy

• Enhances overall clarity

• Does not add color or introduce foreign substances

This is the most common and respected treatment for natural sapphires and is fully disclosed on the GFCO Swiss Lab certificate.

Why Choose This Sapphire?

• Certified Authenticity: GFCO Swiss Lab certification for peace of mind

• Impressive Size: A substantial 13.57 carat gemstone

• Vivid Blue Color: A highly desirable sapphire shade

• Durability: Mohs hardness of 9, ideal for everyday and heirloom jewelry

• Natural & Transparent: Natural sapphire with clearly disclosed treatment

A Statement Sapphire of Timeless Value

At Drewelryshop, we believe in honest representation, proper disclosure, and celebrating natural gemstones for what they are. This heat-treated natural blue sapphire represents the standard of quality seen in fine sapphire jewelry around the world. Its vivid color, certification, and size make it a standout stone with lasting value.

Whether you’re creating a bold custom piece or investing in a collectible gem, this sapphire delivers elegance, presence, and authenticity.

Explore timeless beauty—only at Drewelryshop.