2.91 Ct. Chrysoberyl from Tanzania

This 2.91 carat oval shape green chrysoberyl from Tanzania is an exceptional example of what knowledgeable collectors and custom jewelers seek. The dimensions measure 9.86 by 7.12 by 4.92 millimeters, a proportion that delivers presence on the finger while remaining comfortable for wear in pendants and rings. The mixed brilliant cut combines a brilliant style crown with a more step like pavilion, a deliberate choice that maximizes return of light and maintains a balanced face up appearance for an elongated oval. The gem is transparent, with a medium light color intensity that produces a fresh, verdant tone without becoming overpowering, and the polish is excellent, allowing crisp facet junctions and lively scintillation under both natural and artificial lighting. As supplied by The Natural Gemstone Company, this stone has no enhancement, which is an important consideration for buyers who prioritize natural state and long term stability.

Clarity has been graded as very slightly included when evaluated at eye level, which means that inclusions are minimal and do not distract from the gem when set, yet they provide internal character that can aid in identification and provenance tracking. At 2.91 carats the stone offers a sweet spot for bespoke settings, providing enough mass to anchor classic solitaire designs while remaining versatile enough for halo, three stone, and mixed style pieces. The combination of the oval outline and the mixed brilliant faceting yields strong light performance, with bright flashes along the length and accented sparkle from the crown facets. For a custom ring design, the oval shape naturally flatters the finger and can be mounted lengthwise to create an elongating visual effect, or set widthwise to emphasize a bold statement appearance.

The Tanzanian origin of this chrysoberyl contributes to its desirability among informed buyers, because East African sources are known for producing chrysoberyl with clean crystallography and attractive tonal range. Geologically the best specimens often derive from pegmatitic and metamorphic environments, producing crystals that permit faceting with excellent optical clarity. This stone exhibits a well controlled pavilion depth and a balanced girdle, factors that help it sit securely in a custom setting and allow jewelers to work without excessive modification. The robust hardness of chrysoberyl, which rates at about 8.5 on the Mohs scale, makes it particularly suitable for engagement rings and other daily wear jewelry, offering resistance to scratches and surface wear compared to many other gem materials. Because this stone is untreated, its color and durability will remain consistent over time, a quality appreciated by collectors and designers who prefer minimal intervention.

When planning a custom piece, designers will value this gem for both its aesthetic and technical attributes. The oval shape and specific dimensions make it an excellent candidate for a wide range of settings, including prong mounts that showcase the mixed brilliant cut, low profile bezels that protect the girdle while maintaining visibility of the crown, and artistic bespoke designs that incorporate side stones or metalwork to complement the medium light green tone. Matching accent stones can be chosen to either contrast, using warm metals and champagne diamonds, or to harmonize, using cool white gold or platinum with white sapphires, depending on the desired visual effect. At The Natural Gemstone Company we can provide additional measurements and mounting advice, and we can collaborate with your jeweler to ensure proper orientation and secure setting. For an educated buyer seeking a natural, well proportioned, and visually engaging chrysoberyl for a custom commission, this 2.91 carat oval from Tanzania represents a thoughtful balance of beauty, durability, and design flexibility.