4.12 Ct. Blue Black Opal (Dark Opal) from Australia

This 4.12 carat Black Opal, also described as Dark Opal, presents as an oval shape cut in a tablet style, with exact dimensions of 15.08 by 8.44 by 4.68 millimeters. The tablet cut has been executed to emphasize surface color continuity rather than faceted light return, producing a broad even plane that showcases the opal body tone and internal color play. The piece exhibits an intense color intensity, dominated by deep blue and blue black flashes against a dark body, and the polish is graded excellent, providing a smooth reflective surface that enhances color contrast. Clarity is graded very slightly included at eye level, which means that inclusions are minimal and do not detract from the visible color pattern when the stone is inspected unaided. The stone has undergone heat treatment as an enhancement to stabilize and deepen the body tone and to optimize the apparent color saturation, and the origin is Australia, a provenance that is consistent with classic high quality black opal material. The tablet profile is modestly low in height relative to the length and width, which is intentional to maintain uniform color presentation and to allow for secure bezel or flush settings without obscuring the play of color.

At The Natural Gemstone Company we focus on precision in cutting and grading, and this tablet cut Black Opal is crafted to deliver maximum optical impact for settings that favor surface orientation, such as modern bezels and low profile pendants. The oval outline provides symmetry and predictable light interaction, while the tablet execution ensures that the most desirable color fields are retained across the visible face. For jewelry design recommendations, the shallow thickness and strong body tone make this specimen ideal for a protective bezel or tension mount, where the tablet face can be permitted to sit close to the mounting plane without losing its visual depth. Technical buyers will appreciate the balance between intense color intensity and minimal internal disturbance, and the heat treatment has been applied conservatively to enhance stability and color uniformity rather than to introduce artificial effects. Please contact The Natural Gemstone Company for additional measurements, viewing angles, and matching options for complementary stones, as well as certified documentation on origin and treatment history.