Green Tourmaline · Facet Rough · 5.2 ct · Untreated

This elegant natural green tourmaline crystal from Afghanistan showcases the classic elongated crystal habit for which tourmaline is renowned. Its transparent appearance, eye-clean clarity, and fresh green color make it an outstanding piece of facet-grade rough with excellent potential for precision faceting.

Weighing 5.20 carats, the crystal offers an attractive combination of size, clarity, and natural form. With an estimated 95% facetable volume, nearly the entire crystal can be utilized during the cutting process, providing excellent opportunities to maximize both weight retention and the final gemstone’s optical performance. The elongated proportions naturally lend themselves to elegant faceting styles such as emerald, baguette, radiant, or elongated oval cuts, highlighting the crystal’s clean lines and vibrant color.

The material is eye clean and transparent, allowing light to pass freely through the crystal and enhance its lively green hue. Afghanistan is internationally recognized for producing high-quality tourmaline, prized for its exceptional transparency, vivid colors, and beautifully formed crystals. This untreated specimen preserves all of those natural characteristics, making it an excellent choice for both gem cutters and collectors.

Whether transformed into a sophisticated gemstone for a custom ring or pendant, or kept as a fine natural crystal, this tourmaline offers remarkable versatility. Its combination of high clarity, excellent crystal shape, and outstanding faceting potential provides an ideal foundation for creating a unique precision-cut gemstone.

Specifications

• Stone type: Natural Tourmaline
• Origin: Afghanistan
• Weight: 5.20 ct
• Dimensions: 16.5 × 6.3 × 4.7 mm
• Treatment: Untreated
• Clarity: Eye Clean
• Color: Green
• Transparency: Transparent
• Rough Type: Crystal
• Facet Potential: Facet Grade
• Facetable Volume: ~95%
• Estimated Yield: ~35%