11.68 Ct. Green Prasiolite from Brazil

Long before a jeweler's loupe ever revealed its clarity, this green prasiolite began its long journey deep within the restless heart of the Earth. Millions of years ago silica rich fluids threaded through fractured rock in what is now Brazil, slowly cooling and allowing crystals to form in spacious cavities and pegmatite pockets. Trace elements and minute variations in temperature and pressure coaxed those crystals into the quartz family, laying the groundwork for a green gem that is rare and quietly noble. Over time tectonic shifts exposed veins and geodes, and the sun and rain sculpted the landscape that would eventually yield this single transparent treasure. The story of its birth is written in layers of mineral growth and in the patient chemistry of the planet, a geological biography that informs the gem we admire today.

When our miners uncovered this particular stone, its crystalline potential was clear, and The Natural Gemstone Company recognized an opportunity to transform raw beauty into a wearable work of art. We present this prasiolite as a well balanced asscher octagon shape, weighing 11.68 carats and measuring 13.70 by 13.59 by 10.01 millimeters. The asscher cut gives the gem an architectural elegance, a pavilion of precise facets that draw the eye into a luminous square of light. Its clarity is described as very slightly included when evaluated at eye level, a reassuring grade that preserves brilliant transparency while maintaining character and natural origin. The color intensity is intense, a vivid green that reads as fresh and verdant under daylight, and the polish is excellent, offering mirror smooth facets that reflect and refract light with crisp boundaries. This prasiolite has been heat treated to stabilize and enhance the green tone, a common and accepted enhancement that unlocks the gem's full potential while preserving its natural origin and integrity.

From the mine to the master cutter, each step of the stone's transformation honors its geological beginning and the craftsmanship that brings out its best qualities. In the hands of skilled cutters the rough was examined for inclusions and orientation, then fashioned into the asscher octagon to maximize the gem's depth and face up size while preserving weight and brilliance. The result is a gem that sits boldly on a setting, its 11.68 carat presence commanding attention without overwhelming the wearer. The cut reveals step facets that emphasize symmetry and internal light play, producing flashes of pale lime and deeper green that shift as the gem moves. Our company carefully documents the enhancement as heat treated, and we stand by the accuracy of the described proportions and grades. The dimensions, 13.70 by 13.59 by 10.01 millimeters, translate to a comfortable and striking profile for rings and statement pendants, and the transparency ensures that light travels through the gem to reveal its internal landscape with clarity and life.

Owning this prasiolite is more than possessing a beautiful jewel, it is carrying a fragment of Earth history shaped by human hands into an everyday heirloom. The provenance from Brazil ties the stone to a place known for producing some of the world s most admired colored quartz, and The Natural Gemstone Company sources each piece with respect for both the land and the people involved in its recovery. This green asscher octagon invites creative settings that celebrate its geometry, from a minimalist bezel that highlights its clean lines to a vintage inspired halo that contrasts modern cut with classic elegance. Care for the stone as you would other quartz varieties, avoiding harsh chemicals and extreme heat, and it will retain its intense color and excellent polish for generations. If you seek a gem with a story that begins in the deep time of the planet and ends on your hand, this 11.68 carat prasiolite offers that bridge between natural history and personal expression, and The Natural Gemstone Company is proud to present it for your consideration.