Amethyst · Facet Rough · 27.8 ct · Untreated · Violet

This beautiful natural amethyst crystal from Bahia, Brazil features a vibrant violet color, excellent transparency, and a well-balanced natural crystal shape. Carefully selected as facet-grade rough, it offers outstanding potential for creating a precision-cut gemstone that highlights the rich color and brilliance for which Brazilian amethyst is renowned.

Weighing 27.86 carats, this crystal provides generous material for a variety of faceting designs. With an estimated 99% facetable volume, nearly the entire crystal can be incorporated into the finished gemstone, allowing exceptional weight retention while giving the cutter the freedom to optimize both proportions and optical performance. Its natural shape is well suited for classic cuts such as oval, cushion, emerald, or other custom faceting designs.

The material is eye clean and transparent, allowing light to illuminate the crystal and enhance its vivid violet color. As an unheated amethyst, the gemstone retains its natural color exactly as it developed within the earth, without artificial enhancement. Bahia has long been recognized as one of the world’s premier sources of fine amethyst, producing crystals prized for their clarity, rich color, and excellent cutting quality.

With an estimated 40% yield, this rough offers the opportunity to create a substantial finished gemstone with impressive presence. Whether intended for a bespoke jewelry design or a fine gemstone collection, this crystal combines natural beauty, generous size, and exceptional faceting potential.

Specifications

• Stone type: Natural Amethyst
• Origin: Bahia, Brazil
• Weight: 27.86 ct
• Dimensions: 19.3 × 17.3 × 13.2 mm
• Treatment: Unheated
• Clarity: Eye Clean
• Color: Violet
• Transparency: Transparent
• Rough Type: Crystal
• Facet Potential: Facet Grade
• Facetable Volume: ~99%
• Estimated Yield: ~40%