1.18 Ct. Multi Color Cabochon White Opal (Light Opal) from Australia

This White Opal, Light Opal, offered by The Natural Gemstone Company is a translucent oval cabochon weighing 1.18 carats with precise dimensions of 8.13 by 6.07 by 4.42 millimeters. The cutting style is a classical cabochon, executed with attention to an even domed profile and well centered symmetry to maximize optical performance. Origin is Australia, and this specimen is untreated, with no enhancements. The combination of a medium bodytone and medium color intensity produces a refined, ethereal appearance that reads well under both transmitted and reflected illumination. The overall presentation is targeted to buyers who require measured dimensions and consistent cutting quality for direct integration into bespoke or museum quality mountings.

From a lapidary and optical perspective this cabochon presents a medium high dome, a profile that supports a broad field of play of color without introducing windowing. The length to width ratio is approximately 1.34, a proportion that works well in oval bezels and prong settings designed to protect the girdle while allowing light to enter the crown. The cutting workmanship exhibits excellent polish across the dome, with no visible polish lines or pits at eye level, and an evenly finished girdle and base. Translucency is uniform through the body of the stone, enabling internal diffraction effects to manifest as soft spectral flashes rather than harsh, localized specks. The surface finish and dome geometry were chosen specifically to balance spectacle with durability, acknowledging the intrinsic Mohs hardness range of opal which typically falls between 5.5 and 6.5. For secure mounting recommendations include protective bezel styles or low profile prong settings with a secure backing.

Optical clarity is graded eye clean at normal viewing distances, with no inclusions or fractures apparent at eye level that would compromise stability or visual appeal. Under directional lighting this specimen exhibits predominant blue to violet spectral flashes across the crown, with subtle green and warm yellow tones visible when light transmits through the thinner edges and base. The play of color appears as broad, diffuse flashes rather than tightly clustered pinfire, a characteristic that makes the stone visually calm yet lively across viewing angles. The medium color intensity ensures that these spectral colors are perceptible in moderate ambient light, while the translucent body provides a luminous depth that enhances perceived size. For gemologists and designers who prioritize reproducible visual performance, this opal responds predictably to changes in light angle and background, delivering a pleasing balance between body color and play of color.

From a market and collection standpoint this Australian White Opal, Light Opal, is an attractive piece for clients seeking a classic, high quality cabochon suitable for rings, pendants, and brooches where an understated yet technically refined gemstone is desired. The absence of any enhancement adds to the stone's provenance and collectible value, and The Natural Gemstone Company stands behind the sourcing and description provided. Care recommendations include avoiding ultrasonic cleaners, steam cleaning, and prolonged exposure to solvents or extreme temperature change, and storing the piece in a padded environment to prevent abrasion. We can provide additional high resolution imaging, mounting consultation, or bespoke cutting and setting services for clients who wish to optimize orientation to highlight the blue and violet spectral display. Please contact The Natural Gemstone Company for certification options and further technical documentation or to arrange viewing under controlled lighting conditions.