12.29 Ct. Yellowish Green Prasiolite from Madagascar

Millions of years ago this prasiolite began its journey deep beneath the surface of Madagascar, where silica rich fluids slowly cooled in fractures and pockets of metamorphic rock, allowing quartz crystals to grow with remarkable clarity. Trace amounts of iron and subtle variations in the local chemistry became locked into the crystal lattice as the quartz crystallized, setting the stage for the yellowish green tone that would later be revealed. Over geological time the stone was subjected to shifting heat and pressure that perfected its internal structure, producing a transparent gem with excellent inherent stability. When The Natural Gemstone Company acquired this rough from responsible miners, careful, controlled heat treatment was applied to awaken the vivid yellowish green prasiolite hue, a treatment that enhances but does not mask the gem s natural character. The result is a beautiful transparent 12.29 carat emerald cut prasiolite, with dimensions of 15.69 x 12.24 x 8.38 mm, an intense color intensity, a clarity grade of very very slightly included evaluated at eye level, and an excellent polish that emphasizes the gem s internal depth and lively light performance.

Compared to other green gems on the market this prasiolite delivers an exceptional balance of size, clarity, and value that is hard to match, peridot and green tourmaline often show more visible inclusions at this scale, and green sapphire while durable and rare at comparable hue often carries a significantly higher price per carat. The emerald cut chosen for this stone accentuates its transparency and clean lines, offering a modern, elegant platform that highlights the intense color without distracting brilliance, making it ideal for a bold statement ring or a bespoke center stone. The origin in Madagascar adds desirable provenance, and our close relationships with local suppliers allow The Natural Gemstone Company to offer this gem as a responsibly sourced alternative to more common or more costly green gems. For buyers seeking a unique, eye catching, and well priced large green gem, this 12.29 carat prasiolite stands out for its combination of natural geological story, expert finishing, and clear market value.