1.13 Ct. Bluish Green Sapphire from Australia

This transparent 1.13 carat bluish green sapphire presents in a refined fancy shape, with dimensions of 7.49 x 5.41 x 3.52 mm, a step cut faceting scheme, and a clarity grade recorded as very very slightly included when evaluated at eye level. The cut is executed with careful attention to facet proportions, creating a broad table and parallel crown steps that emphasize hue saturation across the crown, while the stepped pavilion planes provide controlled light return and color modulation. Color intensity is classified as intense, and the overall surface finish is noted as excellent polish, with crisp facet junctions and minimal abrasion observed on all facets. Enhancement is heat treated, a stable and common practice for sapphire material that improves tone and saturation without compromising structural integrity. Origin is Australia, a provenance that often yields distinct teal and bluish green tones due to local trace element chemistry and growth environment.

From a faceting and optical mechanics perspective, the step cut chosen for this piece is purposeful. Step faceting creates fewer but larger facets than brilliant cutting, producing a different interaction with incident light, favoring broad flashes of color and a clean internal appearance over scintillation. The crown is proportioned to maximize the apparent depth of tone across the table, while the pavilion steps are calibrated to avoid windowing and to preserve the intense bluish green saturation when viewed face up. The clarity grade very very slightly included evaluated at eye level indicates that inclusions are minimal and do not materially interrupt light transmission at normal viewing distance, allowing the gem to exhibit a steady, even color face up. The excellent polish enhances edge definition and ensures that facet junctions act as crisp reflectors, contributing to the gem feeling precise and architectural in hand. The cutting retains weight effectively while establishing symmetry that complements a variety of mounting styles.

Materially and gemologically, this Australian sapphire occupies a distinct position. Australian sapphires frequently present with bluish green to greenish blue hues that differ from the classical cornflower blue of Sri Lankan material or the deep royal blues of Kashmir. Heat treatment here is disclosed and executed to enhance the present hue without creating artificial coloration, yielding a stable result that is both visually attractive and technically transparent to gemological assessment. The baseline hardness of corundum, nine on the Mohs scale, guarantees excellent durability for daily wear, and the step cut geometry further protects edge vulnerability by offering fewer acute facet intersections than highly faceted brilliants. For setting, a bezel or low profile prong with an open gallery will protect the girdle and conserve the intended light path through the table. Orienting the table to align with the strongest face up hue will ensure the intense bluish green reads consistently across viewing angles. The combination of chemical stability, mechanical hardness, and heat treatment standardization makes this stone a practical and enduring choice for a variety of jewelry applications.

When placed in the context of famous historical sapphires, this gem offers a different kind of value. Large museum stones such as the Logan Sapphire or the Stuart Sapphire are celebrated for their scale and singular historical narratives, while star sapphires such as the Star of India highlight asterism rather than pure face up color. By contrast, this 1.13 carat Australian stone is representative of a modern collector focus on precise cutting, controlled color, and surgical clarity. Compared to the cornflower glow prized in Sri Lankan finds, this stone leans into bluish green intensity that can be equated to a maritime palette seen in certain 19th century jewelry, but with far more exacting faceting and polish technology. Its step cut gives it an architectural aesthetic similar to emerald cut colored stones that have historically been appreciated for their clarity and color saturation. The unique value of this sapphire lies in its combination of intense, evenly distributed bluish green color, high clarity at face up inspection, exacting step cut geometry, and reliable heat treatment disclosure. At The Natural Sapphire Company we emphasize transparent origin and treatment information, and we present this gem as a technical and wearable example of Australian sapphire character, ideal for the buyer who values measured optical behavior, precise craftsmanship, and a distinct color profile that stands apart from the classical historical examples while remaining rooted in the enduring qualities that have defined great sapphires through the ages.