没有保留价 紫罗兰色, 蓝色 坦桑石 - 12.19 ct - 安特卫普宝石报告（GRA） - 坦桑尼亚宝藏

Royal Antwerp Gem – Natural Tanzanite – 12.19 ct – Certified

DESCRIPTION

An impressive Natural Tanzanite weighing 12.19 ct, displaying an attractive violetish-blue color with transparent clarity.

Tanzanite is a highly distinctive variety of natural Zoisite, appreciated for its characteristic combination of blue and violet tones. This substantial example is fashioned in an elegant Pear Mixed Cut, highlighting its appealing color, impressive size, and natural character.

The gemstone has been professionally examined and certified by Gem Report Antwerp (GRA), one of the oldest independent gemological laboratories in Antwerp, Belgium.

The laboratory report states that Tanzanite is commonly heated at low temperatures to improve its color and that there is currently no testing method available to disclose such treatment.

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SPECIFICATIONS

Gemstone: Natural Zoisite, Tanzanite
Weight: 12.19 ct
Shape: Pear Mixed Cut
Measurements: 18.79 × 13.44 × 7.94 mm
Color: Violetish Blue
Transparency: Transparent
Treatment: Cannot currently be determined
Certificate: Gem Report Antwerp (Belgium)
Report Number: 1830019149 AN
Certificate Date: 24 August 2026

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SHIPPING

• Secure worldwide shipping
• Fully insured shipment
• Tracking number provided
• Professionally packed for maximum protection
• Shipped directly from Antwerp, Belgium

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PACKAGING

The gemstone will be delivered in a protective bag together with the original Gem Report Antwerp certificate.

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Paraiba specializes in carefully selected natural gemstones sourced from around the world. Every gemstone is professionally certified in Belgium and shipped directly from Antwerp — the historic world capital of diamonds and colored gemstones.

We carefully select each gemstone for its beauty, authenticity, and overall quality, providing collectors, jewelers, and gemstone enthusiasts with stones they can purchase with confidence.

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NOTES

Please examine all photographs carefully, as they form an integral part of the description.

The gemstone has been photographed under different lighting conditions to present its appearance as accurately as possible. Slight color variations may occur depending on lighting conditions and monitor or smartphone settings.

Natural gemstones may contain internal characteristics and inclusions formed during their natural growth. These are normal features of natural gemstones and should not necessarily be considered imperfections.

According to the accompanying Gem Report Antwerp certificate, Tanzanite is commonly heated at low temperatures to improve its color. There is currently no testing method available to determine whether such treatment has been applied.