69.22 Ct. Blue Tanzanite from Tanzania

This exceptional transparent 69.22 carat trillion shape blue tanzanite from Tanzania is a statement piece for collectors and custom jewelers, offering a rare combination of substantial weight and an elegant trillion outline. The stone measures 1.00 by 1.00 by 1.00 millimeters as recorded in our listing, and presents a vivid color intensity that is the hallmark of top quality tanzanite. Graded as eye clean when evaluated at eye level, this gem displays clarity that allows light to travel through without distracting inclusions, and the excellent polish enhances its scintillation and overall visual appeal. The specimen has been heat treated to optimize its blue hue, a stable and widely accepted enhancement for tanzanite, and the origin of Tanzania further supports its provenance and desirability among educated buyers who value ethical sourcing and geological significance.

From a gemological perspective the trillion cut is advantageous for maximizing color saturation and face up presence, especially in a stone of this carat weight. The triangular facet arrangement concentrates color in the center while producing lively flashes of light along each edge, making it ideal as a dominant center stone in bespoke designs. The eye clean clarity grade simplifies the design process for custom work, since minimal inclusion masking is required, and the excellent polish ensures that fine settings will not be compromised by surface irregularities. Buyers should note that heat treatment is standard practice to bring out the characteristic velvety blue violet of tanzanite, and when documented it adds value by confirming that the stone exhibits its best possible color and stability without the need for further enhancement.

For custom jewelry applications this tanzanite is exceptionally versatile, suited to bold solitaire rings, dramatic pendants, and asymmetric statement earrings, as well as to sculptural designs that showcase its trillion silhouette. The large carat weight allows creative cutters and designers latitude to orient the stone for optimal pleochroic display, and the resulting piece will draw attention to both color and form. Given tanzanite s moderate hardness, we recommend secure settings such as protective bezels or robust prong work for everyday wear pieces, while pendants or brooches provide options for high visibility with lower risk. The Natural Gemstone Company stands ready to assist with certification, setting recommendations, and custom design consultations, ensuring that this rare Tanzanian trillion tanzanite is mounted to both technical and aesthetic excellence.