7.13 Ct. Boulder Opal from Australia

If you are searching for a show stopping center stone for an engagement ring, a one of a kind pendant to mark a milestone, or a rare addition to a discerning gemstone collection, this Boulder Opal from The Natural Gemstone Company answers that search with confidence. Many clients tell me they want a gem that feels unique, that tells a story, and that will draw admiration for its natural beauty. This 7.13 carat multi color opal meets those desires, marrying intense color to a richly textured surface that reads beautiful in photographs and becomes unforgettable when seen in person. For the buyer who wants to stop looking and start planning a special setting, this opal is the resolution you have been seeking, because it blends wearable dimensions, collector grade attributes, and the authentic provenance collectors value.

Technically exceptional, this Boulder Opal weighs 7.13 carats, and measures 17.97 by 12.41 by 4.02 mm, a size that suits both bold rings and elegant pendants. The shape is a freeform outline, offering a natural, organic silhouette that allows a jeweler to create a custom bezel or prong design that highlights the stone instead of constraining it to a standard outline. There is no specific cut applied, allowing the opal to retain its character as a natural freeform gem. Clarity is graded as very slightly included when evaluated at eye level, which in this material enhances rather than detracts from the gem, adding depth and personality to the surface rather than interrupting the visual flow. Color intensity is intense, and the polish is excellent, providing a glass like surface that magnifies the internal color flashes in every angle. This opal is opaque, showcasing bold, saturated flashes of red, green, and blue across a layered, almost painterly field. Importantly, there is no enhancement, the stone is untreated, and the origin is Australia, the classic home of quality Boulder Opal, which further supports its appeal to collectors and connoisseurs.

Because this is a Boulder Opal, you are also getting the natural ironstone backing that gives the stone stability and a distinctive aesthetic. The thin brown ironstone layer framed around the vibrant color bar adds contrast that makes the colors sing, and it provides a lot of options for creative jewelry design. For an engagement ring, imagine the freeform face set flush in a custom bezel that follows the stone contours, perhaps with a halo of small accent diamonds to amplify the reds and greens without overpowering the opal itself. For a pendant, a simple gold or platinum frame that allows light to reach the surface from multiple angles will showcase the intense color intensity and the opal will reveal new patterns as it moves. For collectors, the Australian origin, the absence of enhancement, and the specific dimensions and carat weight make this piece a strong candidate for a focused collection of natural opals. The freeform nature means each viewing angle reveals a different composition of color and pattern, which is exactly what collectors prize in top tier Boulder Opal specimens.

At The Natural Gemstone Company we understand that choosing a special gemstone is about more than technical specs, it is about trust, provenance, and long term enjoyment. This Boulder Opal arrives with clear information about weight, dimensions, clarity, polish, and treatment status, because we want you to buy with confidence. Caring for opal requires some mindfulness, especially with boulder material that pairs a color bar to ironstone. Avoid sudden temperature changes, harsh chemicals, and ultrasonic cleaners, and keep the gem stored separately to prevent scratching. For daily wear in a ring, a protective bezel can preserve the polished face and the ironstone backing gives added durability compared to more fragile opal types. If you wish, our design team can advise on optimal settings that protect the stone while allowing its intense play of color to remain the focal point. Your investment in this 7.13 carat freeform multi color Boulder Opal concludes a search for authenticity, beauty, and rarity, and delivers a gem that will inspire stories for years to come.