This mesmerizing gem-quality quartz cabochon weighs in at 19.11 carats and measures 15mm x 14mm x 11.5mm. Polished into a soft sugarloaf shape, the stone acts as a natural optical lens, amplifying the visual intensity of the vivid internal rainbow. This vibrant iridescence is the result of a conchoidal internal fracture — a smooth, curved break that captures and diffracts light into brilliant spectral bands of color.
The fracture plane sits perfectly within the optical axis of the cabochon, producing a uniquely focused display that shifts and dances with movement, reminiscent of fire through water. Hints of rutile—delicate, fibrous inclusions—rest on one edge of the stone, adding both visual texture and mineralogical intrigue to the piece.
This is a perfect example of how natural imperfections within quartz can create extraordinary optical phenomena when framed by thoughtful lapidary work. A surreal gem for any collector or jeweler drawn to stones that straddle the line between science and spectacle.
