1.89 Ct. Multi Color White Opal (Light Opal) from Australia

This specimen is a White Opal, also known as Light Opal, presented by The Natural Gemstone Company, weighing 1.89 carat and fashioned into a classic oval outline. The dimensions measure 16.10 x 10.20 x 1.80 mm, reflecting a low profile tablet cut that emphasizes surface area over depth. The cutting style is tablet, executed to retain maximum play of color while maintaining a thin silhouette, the polish grade is excellent, and the clarity grade is very slightly included as evaluated at eye level. The color intensity is light, and the material exhibits translucent body characteristics typical of Australian light opal material, with no enhancements applied, and the recorded origin is Australia.

From a technical perspective the tablet cut differs from standard cabochon work by employing a deliberately flat to gently domed profile that spreads the internal interference colors across a broad field. The cutter prioritized even thickness of 1.80 mm at the pavilion, balancing the need to expose the opal layer and minimize light loss against the structural requirement to avoid flex or cleavage during setting. The play of color is multi color, with recurring patches of green, blue, and orange dispersed in a pinfire to mosaic pattern, the effect produced by regularities in the silica sphere lattice and the refractive index contrasts within the internal structure. The light body tone reduces opacity while permitting good translucency, which enhances relative brightness of the spectral flashes when viewed under diffuse light. Very slight inclusions exist, distributed at sub millimeter scale, they do not interfere with overall transparency or with the continuity of the color patches, and they were assessed in standard daylight and controlled viewing angles. The excellent surface polish contributes to clarity by eliminating micro abrasion that would otherwise scatter light and mute play of color.

Craftsmanship notes and mounting recommendations reflect the tablet profile and the thin thickness. The cutter achieved tight symmetry in the oval outline and refined the girdle to a narrow even band, this preserves the aesthetic while allowing a low bezel to protect the edge. Because the thickness is 1.80 mm it is best suited to protective settings such as low bezel or flush mounting that distribute pressure away from the thin edge, prong settings are possible when accompanied by a full bezel back or seat. For design integration the stone performs well as a focal element in rings, pendants, and bespoke designs where face up area and luminous color interaction are prioritized. Care instructions include avoiding abrupt thermal shocks and mechanical impact, routine gentle cleaning in mild soap and water, and refraining from ultrasonic or steam cleaning, given the hydrophilic tendencies of opal material. The Natural Gemstone Company stands behind the description, offering this natural, untreated Australian White Opal with full disclosure of measurements, cut, clarity, and polish, and with consultation available for setting and design to optimize the stone performance in finished jewelry.