2.31 Ct. Multi Color Cabochon Black Opal (Dark Opal) from Ethiopia

This 2.31 carat oval shape Black Opal, Dark Opal, from The Natural Gemstone Company presents a refined balance of size and visual presence suitable for bespoke engagement jewellery. The specimen measures 12.67 x 8.71 x 4.26 mm, and is fashioned as a traditional cabochon to emphasize its internal play of color and deep body tone. The cutting style is cabochon, selected to maximize stability and visibility of color flashes across the surface. The gem is opaque with a dark body color intensity, which enhances the contrast of multi color flashes that appear across its surface. The weight, proportions, and smooth dome profile make this piece an adaptable center stone for a variety of ring settings while maintaining an elegant, understated profile that is appropriate for daily wear with appropriate protective setting choices.

Gemological characteristics are clearly documented, with a clarity grade of very slightly included when evaluated at eye level, and an excellent polish across the cabochon surface. The polish quality contributes to crisp, undistorted reflections and a smooth touch, which is important for a stone intended for frequent handling as an engagement piece. The opal displays vivid play of color, with notable red and green flashes against the dark ground, distributed in broad patches rather than dispersed pinpoints. This broad patterning provides visual depth and changes subtly with movement and lighting, a characteristic prized in high quality dark opal. The absence of enhancement is confirmed, so the color and surface condition are natural, and there is no evidence of dyeing, filling, or resin treatments. These objective attributes are recorded to provide a clear understanding of the gem as supplied by The Natural Gemstone Company.

When considering this Black Opal, Dark Opal for an engagement ring, practical factors should be weighed alongside aesthetic appeal. Opal generally registers between 5.5 and 6.5 on the Mohs scale, which makes it softer than traditional engagement stones such as diamond, sapphire, or ruby. The cabochon cut and the gem s moderate depth reduce the risk of cleavage related damage, but the stone remains relatively vulnerable to sharp impacts and abrasive wear. For these reasons protective setting options are recommended, such as a bezel setting that surrounds the profile of the stone, a channel or halo arrangement that offers side protection, or a low profile mount that limits exposure. The 12.67 x 8.71 mm planar dimensions provide a substantial visual footprint without an excessively high dome, allowing a skilled jeweller to craft a secure setting that balances protection with light access to the play of color. Routine care should avoid ultrasonic cleaners and harsh chemicals, and cleaning with a soft cloth and mild, lukewarm soapy water is the advised procedure. Periodic inspection of the mounting is recommended to ensure continued security and alignment.

Provenance and handling history are important considerations for an engagement stone intended to be worn daily, and this Black Opal, Dark Opal originates from Ethiopia, a region increasingly recognized for producing dark opals with strong color contrasts. The combination of a natural origin, no enhancement, and an excellent polish supports an objective assessment of quality and authenticity. The very slightly included clarity grade indicates that inclusions are minor and do not detract from the overall appearance at normal viewing distances, which is favorable for a center stone. When commissioning a setting, working with a bench jeweller experienced with opal is recommended, to ensure the mounting method, seat geometry, and protective measures are tailored to the cabochon profile. The Natural Gemstone Company documents these gemological specifics to support responsible selection and long term enjoyment, and our gemologists are available to provide technical details for design coordination without obligation.