1.24 Ct. Bi Color Sapphire from Ceylon (Sri Lanka)

This transparent 1.24 carat emerald cut bi color sapphire measures 6.58 x 5.58 x 3.87 millimeters, presenting a compact, elegantly proportioned rectangular outline with slightly truncated corners. The gem exhibits a dark color intensity that leans into deep blue and violet nuances, producing a rich visual weight that is immediately apparent in hand. The emerald cut has been executed to emphasize broad, stepped facets that favor color saturation and even tone, while the transparency of the material allows the eye to read subtle internal color transitions. Clarity is graded as slightly included when viewed at eye level, and the finishing work is described as excellent polish, with crisp facet junctions and well aligned facet planes that maximize the stone's surface luster. This sapphire originates from Ceylon, Sri Lanka, a provenance that carries a long established pedigree for fine corundum, and the piece is offered through The Natural Sapphire Company with full disclosure that the stone has been heat treated to optimize both clarity and hue.

From a cutting and proportion perspective, this emerald cut has been balanced to deliver a depth that supports color without sacrificing too much light return. With a length to width ratio of approximately 1.18, the shape reads as slightly elongated, lending itself to classic solitaire or three stone designs where proportional balance is critical. The measured depth of 3.87 millimeters yields a depth proportion of approximately 63.6 percent relative to the mean face dimensions, a range that is appropriate for step cuts in corundum when the cutter aims to deepen apparent color and control windowing. The emerald cut itself consists of a broad table and concentric step facets on the crown and pavilion, which produce large, even flashes of color rather than scintillation. This facet architecture is intentionally chosen for a bi color sapphire where the interaction of two hues is a primary attribute, because step faceting enhances the perception of color planes and allows the viewer to appreciate directional color changes as the stone is rotated or as lighting conditions vary.

Chromatic and clarity characteristics of this sapphire are of particular interest to the technically minded buyer. The stone displays bi chromatic behavior, with primary blue saturation supported by secondary violet to indigo tones, suggesting variable distribution of trace elements and directional pleochroism typical for corundum. In practice this means the gem will present denser blue areas when viewed along one optic axis, with cooler violet flashes appearing along another axis, a phenomenon that can be favored or moderated by the cutter through orientation of the pavilion relative to the crystal axes. The description of dark color intensity indicates a relatively strong tone and high saturation, which in step cut stones emphasizes broad color fields rather than dispersion. Clarity is slightly included at eye level, which commonly corresponds to small crystals, tiny feathers, or faint silk that have minimal impact on structural integrity, but which do impart character and are consistent with natural origin. The heat treatment applied is a standard, well disclosed process used to reduce silk and to stabilize and improve hue, it is widely accepted in the trade and results in improved visual appeal without compromising the gem’s long term stability under normal wear conditions.

The origin of Ceylon adds a measurable premium and narrative value to this sapphire, because Sri Lankan deposits have historically produced a wide range of high quality corundum with characteristic velvety or vibrant blues and complex zoning patterns. Collectors and connoisseurs often ascribe greater desirability to Ceylon provenance due to the island’s long gemological history and the recognizable inclusion and zoning features that allow experienced gemmologists to corroborate origin. Offered by The Natural Sapphire Company, this 1.24 carat bi color emerald cut is an exemplary candidate for a refined setting that showcases its color dynamics, for example a low profile four prong or bezel that secures the stone while allowing viewers to engage with its color planes. Recommended care includes gentle cleaning with warm soapy water and a soft brush, avoiding sudden thermal shocks and aggressive chemicals, and storing separately to prevent abrasion. For the buyer seeking a technically interesting corundum with provenance, controlled enhancement, precise cutting, and museum quality finishing, this sapphire presents a rare combination of step cut craftsmanship, bi color complexity, and Ceylon origin that is consistent with the standards and sourcing transparency of The Natural Sapphire Company.