Amethyst · Facet Rough · 27.2 ct · Untreated · Violet

This natural amethyst crystal from Bahia, Brazil displays a rich violet color and impressive transparency, making it an excellent piece of facet-grade rough for precision gem cutting. Its well-developed crystal form and generous size offer outstanding potential for creating a large, vibrant faceted gemstone with exceptional visual appeal.

Weighing 27.27 carats, this crystal provides abundant material for a wide range of faceting designs. With an estimated 99% facetable volume, nearly the entire crystal can be utilized during cutting, allowing excellent weight retention while giving the cutter the freedom to choose the design that best enhances the gemstone’s natural beauty. Whether fashioned into a classic oval, cushion, emerald cut, or a custom precision design, this rough offers the opportunity to produce a striking finished gemstone.

The crystal is eye clean and highly transparent, allowing light to pass freely through the material and intensify its deep violet color. Unlike many gemstones on the market, this amethyst is unheated, preserving the natural color created within the crystal during its formation. Untreated amethyst from Bahia has long been appreciated for its rich color and excellent cutting quality, making it a favorite among gem cutters and collectors alike.

With an estimated 40% yield, this crystal offers the potential to produce a substantial finished gemstone suitable for a statement ring, pendant, or an exceptional collector’s piece. Its combination of generous size, natural beauty, and outstanding cutting potential makes it an excellent choice for anyone seeking premium amethyst rough.

Specifications

• Stone type: Natural Amethyst
• Origin: Bahia, Brazil
• Weight: 27.27 ct
• Dimensions: 20.3 × 16.6 × 12.2 mm
• Treatment: Unheated
• Clarity: Eye Clean
• Color: Violet
• Transparency: Transparent
• Rough Type: Crystal
• Facet Potential: Facet Grade
• Facetable Volume: ~99%
• Estimated Yield: ~40%