1.13 Ct. Bluish Green Sapphire from Tanzania

This gem is a transparent 1.13 carat sapphire cut in a classic emerald cut shape, with precise dimensions of 6.33 x 4.46 x 3.87 millimeters, and a length to width ratio of approximately 1.42. The emerald cut employs broad, parallel step facets on both crown and pavilion, producing linear light return that emphasizes hue and tone rather than scintillation. The table is deliberately generous to present an uninterrupted field of color, while the stepped pavilion facets are configured to balance light return against color saturation. The measured depth of 3.87 millimeters yields a depth percentage of approximately 71.7 percent when calculated against the average diameter, a proportion selected by the cutter to preserve weight while maintaining optimal color performance and windowing control. The truncated corners native to the emerald cut add mechanical strength and make the stone well suited to settings that expose the girdle, including four prong or bezel styles.

Color is the primary attribute of this sapphire, described as bluish green with vivid color intensity, a combination that is particularly desirable within corundum. The vivid intensity indicates a strong saturation with lively presence under both daylight and incandescent illumination. The emerald cut presents this color in broad planes, allowing the eye to assess hue uniformly across the table. The natural origin in Tanzania contributes to the stone chemistry and trace element profile that produces the bluish green balance, and because the sapphire is unenhanced with no heat treatment or other interventions, the color is entirely native to the crystal. For connoisseurs who evaluate color scientifically, this stone will display consistent hue and tone when viewed face up, and will show subtle pleochroic variance along crystal axes when examined with polarized light or rotated in different lighting, a characteristic behavior of corundum crystals.

Clarity and finish are equally well executed, with a clarity grade recorded as very very slightly included evaluated at eye level. This grade signifies that inclusions are minimal and not readily apparent to an unaided observer in standard face up viewing, and that the cutter has oriented the stone to mask any internal features away from the table. The excellent polish ensures facet junctions are crisp and reflective continuity is smooth, maximizing return and minimizing surface diffusion. Craftsmanship details include careful girdle thickness to reduce risk of chipping at the stone edge, and accurately faceted step planes to preserve symmetry. The gemological properties of corundum, including a refractive index in the range of 1.762 to 1.770 and a birefringence of approximately 0.008 to 0.010, mean that precision cutting and polishing materially affect perceived brilliance and color uniformity. The Natural Sapphire Company certifies that the finishing work adheres to industry best practices, and that the stone has been handled and finished using high grade cutting laps and polishing compounds to achieve the reported level of polish and symmetry.

This sapphire combines technical excellence with real world versatility, suitable for both casual and formal settings. In a daytime casual piece, the stone will read as a vivid bluish green rectangle, offering restrained elegance when set in a low profile bezel or a light prong mount that highlights the step facets. For evening or formal wear, the emerald cut will present a dignified, architectural appearance, especially when paired with accent diamonds set to mirror the step geometry, or with a delicate halo to increase perceived size while preserving the stone color. The dimensions and the depth percentage make this gem a practical candidate for a center stone in rings, pendants, or cufflinks, as the shape sits comfortably against the skin and resists catching due to its truncated corners. Because the sapphire is natural and untreated, it is also highly attractive to buyers who prioritize provenance and long term value. The provenance is Tanzania, and The Natural Sapphire Company stands behind origin verification and ethical sourcing, providing clients with the documentation and traceability that informed purchasers require.

For buyers who assess gemstones on the basis of both gemological metrics and wearable design, this 1.13 carat emerald cut sapphire offers a compelling combination. The cut parameters focus on color presentation and durability, the clarity grade assures an eye clean appearance, and the excellent polish enhances optical performance. The unenhanced nature of the stone, coupled with Tanzanian origin, aligns with preferences for natural specimens with verifiable origin. Whether incorporated into a minimalist daily piece or an elaborate evening design, the sapphire will perform consistently, delivering a vivid bluish green presence that retains subtle internal character under scrutiny. The Natural Sapphire Company is available to discuss mounting options, custom settings, and certification details to ensure the stone is presented in a manner that highlights its technical strengths and aesthetic versatility.