1.48 Ct. White Opal from Australia

This offering is a translucent White Opal of Australian origin, presented in a marquise outline, weighing 1.48 carats, with exact dimensions of 14.00 by 7.18 by 2.42 millimeters. The stone has been executed in a tablet cut, a low profile cabochon style with a flattened dome that maximizes surface area while maintaining a slim pavilion. The form factor yields a broad face up presentation that accentuates the opal body and play of color, while the minimal thickness facilitates secure bezel or low profile prong settings. The profile and dimensions are particularly well suited to designs where a slim silhouette is required, including tapered rings, pendants with close set bezels, and delicate earrings where weight and height must be balanced.

Optical and visual characteristics have been evaluated under standard gemological viewing at eye level, resulting in a clarity grade of eye clean. Under standard lighting the specimen displays intense color intensity, with multicolored play of color distributed across the tablet surface. The dominant body tone is typical of White Opal material, with a translucent to semi translucent base that allows internal color flashes to appear integrated with the body rather than solely surface phenomena. The play of color exhibits a mix of small pinfire and discrete broad flashes, providing both scintillation and larger color patches depending on orientation and light angle. The effect is enhanced by the tablet geometry which presents color uniformly across the length of the marquise axis, lending the piece optical continuity when set in linear jewelry compositions.

From a material science and cutting methodology perspective, the tablet cut executed on this marquise White Opal demonstrates precision control of thickness and surface curvature. The cutter has maintained consistent pavilion thickness at 2.42 millimeters to preserve structural integrity while minimizing internal light scattering that can desaturate play of color. The surface has received an excellent polish, producing a vitreous luster that does not obscure the opal matrix nor introduce polish related hazing. No enhancements have been applied to this piece, it is untreated natural opal material, unheated and unstabilized. The gemological constants for water bearing opal are relevant when considering mounting and wear, the approximate refractive index range near 1.45 and specific gravity around 2.1 are useful for lapidary and setting calculations, and the naturally occurring microstructure responsible for play of color requires that care be taken to avoid harsh chemical contact and extreme thermal shock.

For practical use and provenance considerations, this marquise tablet White Opal from Australia is ideally suited for applications where low profile and maximum color impact are desired. Given the tablet geometry and the even distribution of color, bezel settings and flush mountings will both protect the thin pavilion and maintain the visual plane of the play of color. The 14.00 millimeter length offers a commanding presence in elongate designs, while the 7.18 millimeter width maintains proportional balance. As custodians of natural material, The Natural Gemstone Company provides this gem with full disclosure of origin, treatment status, and the eye level clarity assessment. Recommended care includes avoiding ultrasonic cleaning and harsh solvents, storing the stone in a stable humidity environment when not set, and avoiding sustained exposure to high heat. For clients seeking a cut that bridges classical cabochon aesthetics and contemporary low profile design, this Australian White Opal offers a technically refined and visually engaging option.