7.23 Ct. Bi Color Ametrine from Brazil

If you are searching for a singular gemstone that answers the desire for rarity, versatility, and natural beauty, this 7.23 carat cushion shape bi color ametrine is the answer. Sized at 12.01 by 11.09 by 9.14 millimeters, faceted with a mixed brilliant cut, and polished to an excellent finish, it presents a bold presence and refined sparkle that suits both an unforgettable engagement ring and a distinguished collector piece. The gem is transparent, with a clarity grade described as very very slightly included when evaluated at eye level, which means it offers exceptional visual purity while retaining the telltale traces of natural formation that serious connoisseurs appreciate. Its intense color intensity brings both the warm honeyed gold and the deep regal purple into crisp relief, making the bi color transition dramatic and elegant. There is no enhancement to this stone, it is a wholly natural specimen from Brazil, and when you hold it you are holding a direct line to the earth that produced it. At The Natural Gemstone Company we understand you are not just buying a gem, you are investing in a story, a statement piece, and a lifetime of admiration, and this ametrine meets all of those needs with confidence.

Imagine a story that began millions of years ago, deep below the surface of the earth where pressure, heat, and time conspired to craft mineral magic. In pockets of silica rich fluids that circulated through volcanic and metamorphic rock near Brazil, a quartz crystal slowly grew as waves of chemistry shifted. Tiny traces of iron and other impurities entered the forming crystal lattice, and as temperatures and local conditions varied, sections of the crystal were exposed to different levels of natural radiation, heat, and oxygen. Those subtle environmental shifts locked in distinct zones of color, producing the unique ametrine phenomenon where amethyst purple and citrine gold coexist within a single coherent crystal. Over geological epochs the host rock fractured and eroded, revealing the crystal to be carried by rivers and wind, until skilled miners recovered rough ametrine that already hinted at its dual personality. A master cutter then worked the rough to bring out its best, choosing a cushion shape and a mixed brilliant facet arrangement to maximize the interaction between light and that internal color zoning. The result is a gem that still bears the imprint of its deep time origins, a stone that reads like a geological diary, and because it is unheated and untreated, each zone of color reflects the natural processes that formed it, not laboratory alteration.

For buyers who seek an heirloom worthy gemstone that ends the search, this ametrine is a clear solution. As a center stone for an engagement ring, its dual colors will reflect the many sides of a lasting partnership, changing with movement and mood while remaining unmistakably elegant. For collectors, it embodies rarity and provenance, an unenhanced Brazilian ametrine with serious carat weight and superb cutting. Because the mixed brilliant cut balances facets for fire and brilliance, the gem throws lively flashes that draw the eye, and the cushion outline keeps the look classic yet contemporary. Practical design suggestions that ensure you see every facet of the color split include a setting with a low profile gallery that allows light from both directions, a bezel that holds the gem securely while allowing face up color to shine, or a custom open back mount that reveals the depth of tone when the stone is turned. The very very slightly included clarity grade means the gem reads clean at a glance, while the natural inclusions confirm authenticity to gemologists and enthusiasts. At The Natural Gemstone Company we pride ourselves on sourcing ethically and presenting only natural, unenhanced stones that tell true stories, and this ametrine is one of those rare finds that concludes the search for something extraordinary. If your desire is for a single gemstone that carries geological wonder, design flexibility, and showroom quality craftsmanship in one complete package, this 7.23 carat bi color ametrine delivers, and we are ready to help you make it yours.