6.00 Ct. Boulder Opal from Australia

This entry describes a translucent 6.00 carat freeform Boulder Opal, with dimensions 16.23 x 11.64 x 4.02 mm, originating from Australia. The gem has a freeform shape, an n a cut designation, and an eye clean clarity grade as evaluated at eye level. Color intensity is classified as intense, with an excellent polish and no enhancements. Visual characteristics include a silky translucent body that carries a vibrant play of color, showing prominent flashes of green and blue, interspersed with violet, red and yellow notes that shift with viewing angle. The specimen retains its natural ironstone backing along the base, which is characteristic of Boulder Opal and contributes to structural stability and optical contrast. The faceting approach for this freeform example prioritizes preservation of color and depth rather than symmetry, resulting in an artful surface that displays broad patches and pinfire phenomena across the table.

The Natural Gemstone Company presents this opal with documented measurements and straightforward gemological observations, suitable for designers and collectors who require precise specifications. At 16.23 by 11.64 by 4.02 mm the stone is well suited for settings that protect the thinner edge and ironstone base, such as bezel mounts or inlay designs, while still permitting strong exposure of the fire on the top surface. No treatments have been applied, so the visual character is wholly natural. Recommended care procedures include cleaning with warm water and mild soap and a soft brush, avoiding ultrasonic cleaners, steam, and harsh chemicals, and preventing prolonged exposure to high heat and direct sunlight to maintain stability. Store the opal separately from harder gemstones to avoid abrasion to the polished surface. The Natural Gemstone Company confirms that this Boulder Opal was evaluated under standard viewing conditions and is offered with full specification data to assist in selection and setting decisions.