26.81 Ct. Boulder Opal from Australia

You are looking at a striking Boulder Opal from Australia, a one of a kind, opaque multi color opal weighing 26.81 carats, presented in a freeform shape that measures 26.30 x 18.50 x 5.10 millimeters. This piece has been precision fashioned with a tablet cut, giving it a low profile that showcases broad, painterly flashes of color across its surface. The color intensity reads as medium, with vivid bands and patches of green, blue, purple and subtle pinches of pink that play across the face as the light moves. The polish is excellent, producing a clean reflective surface that accentuates the stone’s layering and natural ironstone matrix contrasts, and it has received no enhancements, so you are seeing genuine, untreated Australian opal material. As a Boulder Opal, this gem presents the characteristic seam and host rock interplay that collectors and designers prize, giving both structural stability and unique, landscape-like patterns that cannot be duplicated.

Because this opal is tablet cut and freeform, it is exceptionally versatile for a variety of jewelry applications while retaining a distinctive, artisan look. The tablet style keeps the stone relatively flat and stable, making it ideal for bezels, custom pendants, chic statement rings with protective settings, and for inlay work where a low profile is desirable. The asymmetric freeform silhouette invites creative mounting choices, from a simple, elegant bezel that highlights the stone’s color flow, to a more architectural setting that uses mixed metals to emphasize the ironstone edge and natural contours. The medium color intensity combined with the excellent polish means the color play will be visible under normal indoor lighting as well as in sunlight, providing wearable brilliance without requiring specialized lighting. Because it is untreated, the opal preserves full natural character, and the Australian origin assures you of high quality Boulder Opal material, known for its hardy host rock and striking, vibrant color seams.

When considering care, settings, and purchase, this 26.81 carat Boulder Opal rewards thoughtful handling and design. The tablet cut and 5.10 millimeter thickness provide enough depth for secure prongs or a solid bezel, but because it remains a natural opal with ironstone matrix, avoid extreme thermal shock, harsh chemicals, and ultrasonic cleaners to maintain the polish and color play. Regular gentle cleaning with a soft cloth and mild soapy water, followed by immediate drying, will keep the surface reflective and the color flashes lively. For designers seeking a focal piece, pair it with warm metals like 14k or 18k yellow gold to accentuate green and pink flashes, or with oxidized silver to dramatize the purple and blue bands. At The Natural Gemstone Company we take pride in sourcing and presenting authentic natural stones, and this Australian Boulder Opal exemplifies the combination of durability, natural beauty, and character our clients look for. If you would like additional views, measurements, or design suggestions for settings that will best showcase this freeform tablet-cut Boulder Opal, please contact us and we will be happy to provide personalized guidance and secure the gem for your next signature piece.