4.08 Ct. Boulder Opal from Australia

This listing describes one beautiful translucent 4.08 carat freeform shape multi color opal, a Boulder Opal sourced from Australia. The specimen measures 19.77 by 7.24 by 3.11 mm, and presents a freeform outline suitable for custom settings that emphasize its natural contours. Cut is not applicable, clarity grade is very slightly included, evaluated at eye level, and the stone displays intense color intensity across the face. The surface has an excellent polish, and the piece shows attractive translucency that enhances the play of color. No enhancement has been applied, and the opal retains characteristics consistent with Boulder Opal, including a thin host rock backing along the base that provides structural stability while accentuating the vibrant opal layer.

Presented by The Natural Gemstone Company, this opal is appropriate for use in a variety of jewelry designs where a low profile and organic shape are desired, including bezel set pendants, inlay work, and custom ear pieces. The freeform geometry and vivid green and blue color play benefit from lighting that allows movement, and the substantial 4.08 carat weight makes it a notable focal element without requiring an oversized mounting. Care recommendations are to avoid abrupt temperature change and exposure to strong solvents, and to clean with mild soapy water and a soft brush, avoiding ultrasonic or steam cleaning due to the natural inclusions and host rock interface. The Natural Gemstone Company provides accurate measurements and grading as stated, and can assist with additional images or setting advice upon request.