4.935 carats Natural Australian Opal | Oval – 11.9 × 13.2 × 5mmA bright Australian opal displaying lively play of color across its surface, revealing flashes of golden, green, and subtle blue tones under changing light. The movement of color appears full and evenly distributed. Cut in a smooth oval form, the surface polish enhances its natural optical display. Light travels across the dome, allowing the internal color patterns to shift fluidly with motion. With its generous face up size, this gemstone is well