4.59 Ct. Semi-Black Opal from Australia

This exquisite Semi Black Opal from The Natural Gemstone Company is a striking example of natural Australian opal beauty, presented in a translucent tablet cut oval, weighing 4.59 carat, with dimensions 15.11 x 10.20 x 4.42 mm. The stone displays an elegant oval silhouette and a smooth, domed tablet profile that flatters the play of color across its surface, making it ideal for a refined pendant, a bold cocktail ring, or a unique pair of earrings. The body tone is delicately balanced between light and dark, which classifies it as a Semi Black Opal, and this subtle depth allows multi color flashes to emerge with pleasing intensity. The opal is untreated, no enhancement, and its excellent polish enhances the natural shimmer and luster, while the slightly included clarity grade, evaluated at eye level, speaks to its authenticity and natural formation, adding character without compromising visual appeal.

When viewed under different lights this Semi Black Opal reveals a lively and complex color display, with cool greens and blues appearing alongside flashes of warm orange and soft pink, creating a multi color tapestry that shifts as the stone moves. The medium intense color intensity gives the opal a refined and wearable brilliance that works beautifully in both day and evening settings. The tablet cut emphasizes broad patches of color, producing attractive color fields and subtle streaking that catch the eye without overwhelming the overall elegance of the piece. The translucency of the material allows light to penetrate and reflect from within, producing depth and a gentle inner glow that enhances the play of color, and the excellent polish adds a mirror like finish to the dome that draws attention to the vibrant color zones and delicate internal character.

From a practical perspective this 4.59 carat oval opal is versatile and easy to set with conventional jewelry techniques that support its tablet shape and protect its edges and base. Because opal is softer than many other gemstones, we recommend a secure bezel or partial bezel setting to protect the perimeter, or a well designed prong setting with a protective gallery for everyday wear. The slightly included clarity grade evaluated at eye level suggests natural internal features that will not distract from the stone when properly set, and the medium intense color intensity means the stone will perform well under a variety of lighting conditions without needing exaggerated lighting to show its beauty. As a gemstone specialist at The Natural Gemstone Company I advise avoiding harsh knocks and extreme temperature changes, storing the opal away from abrasives, and cleaning with a soft cloth and mild soap and water to preserve its polish and color over time.

This Semi Black Opal from Australia represents a rare combination of natural character and wearable size, making it a wonderful choice for someone seeking a distinctive centerpiece that balances color, translucency, and durability. At The Natural Gemstone Company we stand behind the quality of our gemstones and are happy to provide additional images, custom cutting or matching services, and expert advice on mounting and care to ensure the opal is showcased to its fullest potential. Please contact us for bespoke setting recommendations, secure shipping options, or to arrange an appraisal, and allow our team to guide you through the selection and setting process so that this beautiful 4.59 carat tablet cut opal becomes a treasured element of your collection.