1.56 Ct. Blue Sapphire from Tanzania

This transparent 1.56 carat cushion shape blue sapphire measures 6.54 by 5.95 by 4.02 millimeters, yielding an approximate depth percentage of 64.4 percent, dimensions that reflect a deliberate balance between face up presence and optical depth. The cutter employed a mixed brilliant strategy, applying a brilliant facet schema to the crown to maximize scintillation, while refining the pavilion with calibrated step facets to control return and color saturation. The cushion outline is gently rounded at the corners, preserving the traditional silhouette while allowing for precise facet junctions that reduce windowing and promote a uniform light return. Symmetry is clean, the girdle is even, and the pavilion facets align to support a central table that faces the eye with a stable, luminous table plane. The excellent polish on all facet surfaces produces crisp facet junctions and mirror clean facet planes, so highlight contrast and facet definition remain notable under both directional and diffused lighting. Overall the cutting architecture favors a vivid face up presentation, while the pavilion shaping maintains internal color depth, which is critical for a saturated blue sapphire of this size.

Color is a defining attribute of this stone, graded as intense in color intensity, presenting a richly saturated blue with balanced tone that reads strongly in daylight and retains depth under incandescent illumination. Hue distribution is even across the table and pavilion planes, with minimal zoning visible to the unaided eye, and the cutting proportions emphasize the stone s intrinsic chromophores rather than masking them. Pleochroic behavior is present but subtle, as is typical for corundum of this class, offering slightly varied blue nuances when the stone is tilted, which contributes to a lively, three dimensional color experience. The origin, Tanzania, is documented for producing sapphires with robust saturation and a slightly cooler bias in hue, attributes that are perceptible in this specimen. Crucially, the gemstone has received no enhancement, so the intense color is fully natural, preserving original trace element distributions and crystal lattice characteristics, and providing transparency into the stone s geological provenance and color genesis.

Clarity is graded as very slightly included when evaluated at eye level, a practical clarity band that balances transparency with natural character. Inclusions are fine and localized, typically appearing as small pinpoint crystals or minute needles and not as large fractures or clouds, and they do not materially interrupt light passage or structural integrity. Under loupe inspection the inclusions can act as subtle light scatter centers, adding micro sparkle without compromising luster, while at arm s length the stone reads clean and visually continuous. From a craftsmanship and durability standpoint the sapphire benefits from corundum s inherent hardness and toughness, rated at nine on the Mohs scale, and the absence of cleavage planes means the stone is well suited to everyday wear. For setting recommendations, protective options such as low profile bezels or prongs with reinforced corners preserve the cushion s form and guard against edge contact, while open backed or partially open settings will allow the mixed brilliant cut to interact with ambient light to maintain the intended balance of brightness and depth.

This sapphire s proportion, color intensity, and untreated status make it exceptionally versatile, moving from casual to formal contexts with ease. In an everyday ring the saturated blue will read as a refined, durable center that pairs well with white metals for a cooler contrast, yellow gold for a warmer, vintage inspired look, or rose gold for a modern tonal interplay. For formal applications the gem s cushion outline and intense face up color provide a strong focal point that complements high contrast designs and pavé halos, while the mixed brilliant cutting enhances both scintillation and color depth under spotlight conditions. Whether set as a solitaire engagement jewel, a refined cocktail ring, or a bespoke pendant, this 1.56 carat Tanzanian cushion sapphire from The Natural Sapphire Company offers predictable optical performance and long term stability, and it responds well to custom design adjustments that optimize light entry and security. For collectors and connoisseurs who prioritize natural origin, surgical polish quality, and a cutter s thoughtful approach to facet architecture, this stone is an excellent candidate for immediate setting or for inclusion into a made to order creation. Please contact The Natural Sapphire Company for additional technical data, viewing options, and bespoke mounting recommendations.