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

This White Opal, Light Opal, of 1.70 carats and freeform shape traces its origin to Australian opal fields where nodules are extracted through controlled tunneling and bench mining. The rough was selected for translucency and play of color, inspected for internal layering and potch distribution, and oriented to preserve the broad multi color flashes visible across its face. Initial preforming established the tablet outline and retained maximum material to achieve the specified final dimensions of 14.16 x 6.87 x 3.29 mm. The material displays medium color intensity, with dispersed red, green, and blue flashes that shift with viewing angle, and translucency that favors internal light transmission. Clarity was evaluated at eye level and graded eye clean, indicating absence of visually intrusive inclusions without the use of magnification. No enhancement was applied to alter appearance or stability, preserving the natural hydration and microstructure that produce the opal diffraction phenomena.

The cutting and finishing process implemented a tablet style, a shallow, slightly domed tablet plane that optimizes surface area for play of color while maintaining a uniform thickness profile for secure setting. Fine shaping employed diamond abrasives for controlled removal, followed by progressive laps to refine the tablet plane and bevel the edges to a balanced profile conducive to bezel or flush mounting. Polishing concluded with cerium oxide on felt to achieve an excellent polish and to enhance the opal sheen without altering its medium color intensity. The polished cut emphasizes the multi color fire across the broad face while maintaining the stone as eye clean at normal viewing distance. The Natural Gemstone Company presents this translucent 1.70 carat White Opal, Light Opal, as a technically considered specimen for collectors and designers who value precise dimensions, measured color grading, and artisanal cutting that respects the material as found in the mine. This piece arrives ready for setting, accompanied by the documented origin and treatment statement confirming no enhancement, and is suitable for designs that require stable profile and predictable optical performance.