1.17 Ct. Semi-Black Opal from Australia

This exceptional Semi-Black Opal from The Natural Gemstone Company is a fine example of natural Australian opal, presented in a classic oval outline, weighing 1.17 carats. Its dimensions are 9.46 by 7.22 by 2.57 millimeters, a versatile size that sits beautifully in both rings and pendants. The stone is opaque with a tablet cut that preserves and highlights the characteristic play of color while offering a low profile suitable for everyday wear. The clarity has been graded very slightly included, evaluated at eye level, a meaningful distinction that assures collectors and connoisseurs that inclusions are minimal and do not distract from the gem’s visual performance. Color intensity is described as medium intense, and the polish is excellent, giving the surface a brilliant, smooth finish that intensifies color reflections. Notably, this opal has received no enhancement, an important detail for buyers who prioritize natural, untreated gemstones with clear provenance, and its origin is Australia, a region renowned for producing some of the finest opal varieties in the world.

Understanding the technical aspects of this opal can help an educated buyer appreciate its true value. The term Semi-Black Opal refers to a body tone that is darker than white opal but lighter than true black opal, providing a balanced backdrop that allows play of color to appear vivid and saturated without the extreme contrast of deeper black stones. The very slightly included clarity grade, evaluated at eye level, means that any internal features are minor and typically require close inspection to detect. Such inclusions in opal often result from the natural deposition and silica structure rather than fractures, and they rarely reduce durability when the stone has been cut and finished by experienced hands. The tablet cut offers a flattened pavilion and domed top that can emphasize broad flashes of color, rather than the pinfire effect seen in some cuts, and the excellent polish enhances luster and tactile quality. The medium intense color intensity is a desirable balance, offering visibility and vibrancy in both natural and artificial light, making this opal practical for a range of jewelry applications.

Comparing this natural Semi-Black Opal to lab-grown or synthetic opals clarifies why many educated buyers continue to favor natural gemstones. Lab-grown opals, including synthetic versions designed to mimic natural play of color, can offer uniformity and lower price points, but they do so at the expense of natural variability, geologic history, and often long term value retention. Natural opals form over millions of years through unique geological processes that create the irregularities and individualized color patterns collectors prize. The origin of this opal, Australia, carries weight in the marketplace because Australian opals are widely recognized for their stability, depth of color, and trusted sourcing. The fact that this piece has no enhancement is particularly meaningful when contrasted with many market offerings that may be stabilized, dyed, or otherwise treated to improve appearance. Treatments can obscure true geological character and complicate valuation. Natural, untreated stones like this Semi-Black Opal are prized for their authenticity, provenance, and the inherent storytelling that accompanies a gem formed in nature, features that lab-grown counterparts cannot replicate. From an investment perspective, natural opals with clear origin and no enhancement generally maintain greater buyer confidence and can command stronger resale prices in the secondary market.

For buyers seeking a stone that combines tangible gemological quality with aesthetic appeal, this Semi-Black Opal represents a compelling option. At 1.17 carats and with its elegant oval tablet cut, it is well suited to a variety of settings, including low bezel settings that protect the edges, elegant prong mounts that maximize visible surface area, and bespoke designs that highlight its unique play of color. Care recommendations include avoiding prolonged exposure to strong chemicals and extreme heat, protecting the opal from hard knocks, and cleaning with a soft, damp cloth rather than ultrasonic cleaners. For those concerned with authenticity and valuation, The Natural Gemstone Company provides transparent information on origin and treatment status, and we can assist in obtaining independent gemstone reports or detailed photographs and videos on request. If you desire a gem that reflects geological rarity, exhibits a balanced and vibrant play of color, and carries the integrity of natural formation, this Australian Semi-Black Opal is worthy of serious consideration. Contact us at The Natural Gemstone Company for additional details, bespoke mounting advice, or to arrange an inspection, and allow us to guide you through acquiring a stone that will be treasured for generations.