1.88 Ct. Coral from Australia

This piece is a 1.88 carat natural coral, presented in a freeform carved rose motif, with dimensions 9.33 x 9.21 x 3.63 mm, originating from Australia. The material is opaque, with a medium color intensity leaning toward a warm orange, and it displays an excellent polish across the carved surfaces. The cut is not applicable in the traditional faceted sense, as the value of this specimen is expressed through its carved form and surface finishing rather than through pavilion and crown faceting. No enhancements have been applied to this coral, and our internal assessment confirms the absence of dyeing, stabilization, or resin filling, which preserves the original material properties associated with Australian coral. The symmetry of the carving follows the freeform contours of the rough, resulting in a balanced but organic outline that emphasizes natural grain and color distribution.

From a gemological perspective this coral is an organic gem composed primarily of calcium carbonate in an aragonite crystalline form, exhibiting the typical physical parameters of natural gem corals. Expect a Mohs hardness in the vicinity of 3.0 to 3.5, and a specific gravity approximately 2.6, values that inform handling and setting decisions. Optical properties are those of an opaque to subtranslucent organic material, therefore refractive index measurements are not applicable in the same way as they are for silicate minerals, and light interaction is dominated by surface reflection and subtle subsurface scattering in areas of thinner cross section. Color grading in this specimen is best described as medium intensity orange, with uniformity across the major surfaces, and minor natural inclusions and vein lines consistent with authentic coral structure. The polish is excellent, executed to a smooth, satin to glossy finish that enhances the color saturation without obscuring the carved motif or natural texture.

The craftsmanship evident in this carving is a central technical attribute. The rose motif is realized through careful removal of material to form layered petals, controlled undercutting to create depth, and a central bore that indicates the piece is suitable for use as a bead or pendant component. The carving process was likely performed with fine rotary tools and small abrasives, progressing through successive grits to achieve final refining, and concluded with a fine polish to eliminate tool marks while preserving petal edges. The three dimensional modeling of the petals demonstrates attention to relief height and draft angles, which is important to prevent chipping during setting or wear. The drilled aperture is clean and concentric, with chamfered edges to minimize stress concentration when threaded or mounted, a practical detail that is valued by designers who plan to integrate the piece into stringing or suspension settings.

For use and maintenance this coral is best treated as a delicate organic gem that benefits from considered setting methods and conservative cleaning. Because of its moderate hardness and organic composition, bezel settings that provide continuous edge support, or secure suspension where contact is minimized, are recommended for everyday wear. Avoid aggressive mechanical cleaning, ultrasonic baths, and exposure to concentrated acids or prolonged high heat, as these can alter surface luster or color. Gentle cleaning with a soft cloth and mild soapy water, followed by air drying, will maintain the polish and color integrity. At The Natural Gemstone Company we document the unenhanced status and Australian provenance of this coral, and we can provide additional high resolution imaging and measured data upon request to support design decisions or appraisals. This specimen will appeal to collectors and designers who prioritize natural provenance, precise carving, and stable, untreated color in organic gemstones, and it serves as a distinctive focal element in bespoke jewelry applications.