1.35 Ct. Blue Sapphire from Tanzania

This exquisite transparent blue sapphire weighs 1.35 carats and is presented in a refined cushion shape, measuring 6.57 by 5.79 by 3.61 millimeters. The cutting style is a mixed brilliant cut, combining the scintillating facets of a brilliant pattern on the crown with larger pavilion facets to enhance depth and color dispersion. The gem displays a vivid color intensity, a deep saturated blue that reads consistently across multiple angles in the accompanying images. Clarity is graded very very slightly included, evaluated at eye level, which indicates that the stone appears clean to the naked eye with only minute inclusions visible under strong magnification. The polish is excellent, producing clean facet junctions and lively light return. Importantly for discerning buyers, this sapphire is natural and has received no enhancement, a trait that significantly increases desirability for many collectors and connoisseurs.

From a gemological perspective, this stone checks many of the boxes that determine both beauty and value. Color remains the single most important factor for blue sapphire, and the vivid intensity seen in this example reflects a strong balance of medium dark tone and high saturation. The mixed brilliant cut has been chosen to optimize these color properties, allowing the pavilion facets to deepen the hue while the crown facets contribute to sparkle and contrast. Clarity described as very very slightly included ensures that internal features do not materially interfere with light performance, yet they can serve as natural fingerprints that verify authenticity. The excellent polish augments the cut quality, enabling crisp reflections and minimizing light leakage. Taken together, the precise dimensions, weight, and facet design make this sapphire well suited for a fine engagement ring or a bespoke pendant where the stone can be set to showcase its color and brilliance.

The origin of this sapphire is Tanzania, and that provenance adds a distinct layer of value and interest for educated buyers. Tanzanian sapphires are known for producing richly saturated blues and for a mineral chemistry that often yields a velvety depth to the hue. While Tanzania hosts several deposits each with their own character, the broader reputation for high quality material from this country has increased collector demand. For an untreated sapphire, origin matters because it ties the gem to a geological story and to trace element signatures that gemological laboratories can often use to corroborate provenance. An untreated Tanzanian sapphire with vivid color and very very slight inclusions occupies a premium niche in the market, because the combination of natural color intensity and the absence of enhancement is relatively uncommon. For buyers who value transparency in sourcing and who appreciate the geology behind their gems, a Tanzanian origin is an attribute that reinforces both aesthetic and investment qualities.

For the buyer who is considering this sapphire as a personal statement piece or as part of a curated collection, there are several practical and value related points to consider. The weight of 1.35 carats balances presence on the finger with wearability, and the cushion shape lends itself to classic and contemporary settings alike. Given the natural clarity and excellent polish, a well executed prong or bezel setting will maximize light entry and secure the stone without obscuring its face up color. The fact that the sapphire is unenhanced is a compelling provenance advantage, and The Natural Sapphire Company stands behind the accurate description of this gem while offering further information and assistance with gemological documentation on request. Care recommendations include avoiding prolonged exposure to harsh chemicals and extreme heat, and routine cleaning with mild soap and a soft brush to maintain luster. For collectors and investors, an untreated, vividly colored Tanzanian sapphire such as this often retains and can appreciate in value over time, particularly when accompanied by clear documentation from a reputable supplier like The Natural Sapphire Company. This combination of measured technical quality, transparent origin, and expert presentation makes the sapphire a strong choice for the educated buyer who seeks both beauty and substance.