8.90 Ct. Boulder Opal from Australia

One beautiful translucent Boulder Opal is available from The Natural Gemstone Company, presented as an 8.90 carat freeform shape multi color opal, with dimensions 18.30 x 11.50 x 5.00 mm. The cut is not applicable for this freeform gem, the clarity grade is very slightly included, evaluated at eye level, the color intensity is vivid, and the polish is excellent. The opal shows no enhancement, and its origin is Australia. As a boulder opal this piece retains a thin natural ironstone backing in places, which anchors the play of color and offers a striking contrast to the translucent face. This combination of clarity, vivid color, and an unenhanced status makes this opal a gem that will appeal to collectors and designers who value natural beauty and integrity.

Visually this opal is a vivid demonstration of why boulder opals are so treasured, with lively flashes of neon green and electric blue, balanced by warm flashes of orange and red that seem to float within the translucent body of the stone. The freeform shape allows the color to present differently depending on the angle and the light, so movement reveals new patches of color and new relationships between the hues. The surface shows an excellent polish which enhances brightness and depth, and the translucent body allows color to appear almost three dimensional. The small, very slightly included characteristics are natural and unobtrusive, not detracting from the overall visual impact when viewed at normal wearing distances. The ironstone base is an authentic signature of Australian boulder opals, providing not only contrast but also a slight texture along the lower edge that is prized for natural character.

For practical design and wearability the measurements of 18.30 x 11.50 x 5.00 mm and the 8.90 carat weight give this opal presence without being bulky, and the freeform outline provides exceptional creative freedom. This gemstone is ideal for use in a pendant where the light can play across the surface, or as a central stone in an artisan ring set with a protective bezel, or as a unique focal in a custom brooch. Bezel settings are particularly recommended for this type of opal, as they help protect the edges and stabilize the stone against everyday knocks. If a prong setting is preferred, thoughtful design that supports the thinner edges and avoids exposing the stone to hard impacts will protect the opal long term. Pairing the stone with warm metals like yellow gold will accentuate the orange and red flashes, while white gold or platinum will emphasize the greens and blues. Because this opal is unenhanced, it carries more intrinsic value than treated stones, and its vivid play of color makes it desirable for both collectors and designers.

When you buy from The Natural Gemstone Company you receive not only a beautifully characterized boulder opal, but also our commitment to accurate description and secure packaging. We photograph and evaluate each gemstone under consistent lighting to provide realistic expectations, and we grade clarity, color intensity, and polish so you know exactly what you are purchasing. Care for this opal by avoiding sudden temperature shocks, extended exposure to harsh chemicals, and ultrasonic cleaners, and clean gently with mild soapy water and a soft cloth. For custom settings and design advice we are happy to consult, and we can recommend setting approaches that will highlight the stone while ensuring durability. If you appreciate natural, unenhanced gemstones with vivid color and character, this 8.90 carat Australian Boulder Opal is an exceptional choice, and our team is ready to assist with additional photos, measurements, or design suggestions to help you bring this beautiful gem into your collection or jewelry design.