1.14 Ct. Multi Color Cabochon Boulder Opal from Australia

This listing presents a translucent 1.14 carat oval shaped multi color opal, a natural Boulder Opal originating from Australia, with precise dimensions of 9.74 x 6.59 x 2.81 mm. The stone has been fashioned into a classic cabochon cut to best reveal its internal play of color, and it displays vivid color intensity across its surface. The polish is excellent, contributing to a clean surface and lively optical response as the stone moves under light. There is no enhancement, the material is natural and untreated, and the weight and measurements are accurate to standard gemological practice, ensuring clear specification for use in fine jewelry or private collections.

As a Boulder Opal this specimen features the distinctive interaction between opalized silica and its ironstone host, a relationship that contributes to both its visual character and structural profile. The stone exhibits a broad spectrum of color flash, with dominant green and violet tones complemented by flashes of warmer hues, all set against translucent to semi translucent background tones. The cabochon dome has been proportioned to balance depth of color with surface brilliance, and the oval outline provides a versatile silhouette for a range of settings. The excellent polish reduces surface diffusion and allows each patch of play of color to present with clarity, while the natural matrix along the edges emphasizes the stone s origin and authentic character.

The Australian origin of this Boulder Opal is a meaningful aspect of its value, both from a geological perspective and from the standpoint of market recognition. Australian boulder opals are formed by silica rich solutions filling voids and fractures in ironstone, followed by slow periods of dehydration and stabilization, a process that produces the distinctive color layering and durable matrix association seen in this piece. Regions in Australia known for boulder opal production have a long history of careful extraction and selection, and the provenance contributes to a well established reputation for quality among connoisseurs and lapidaries. Because this stone is unenhanced, its Australian origin and its natural ironstone association add assurance about its authenticity, stability, and long term presence in a collection, attributes that are especially important to buyers who prioritize natural, untreated gemstones.

For practical use this 1.14 carat oval Boulder Opal is well suited to a bezel or partial bezel setting that protects the cabochon edge and secures the stone while allowing the face to display its full play of color. At 9.74 x 6.59 mm the gem sits comfortably on a ring or a pendant and offers a refined presence without overwhelming typical mounting designs. Care guidelines for opal emphasize avoidance of harsh chemicals, sudden thermal changes, and prolonged exposure to ultrasonic cleaners, and routine cleaning with a soft cloth and mild soap in tepid water is recommended to preserve the polish and color intensity. The Natural Gemstone Company provides this description to support informed decisions, and we note the stone s specifications and natural, unenhanced status to assist in appraisal, design planning, and collection management.