6.77 Ct. Bi Color Ametrine from Brazil

From the rich alluvial terraces of Brazil to the careful hands of our master cutters, this 6.77 carat cushion shape bi color ametrine tells a story of time and transformation, a narrative that begins deep within volcanic places where quartz grew slowly and patiently, capturing moments of the earth as color and crystal. In its raw state this piece displayed the rare juxtaposition of amethyst purple and citrine golden yellow in a single crystal, a natural zoning born of subtle variations in temperature and natural irradiation during formation. We have preserved that geological diary in a transparent, faceted finished gem that measures 12.69 x 10.23 x 8.61 mm, polished to an excellent finish and cut in a mixed brilliant style so that every facet contributes to a lively dance of color and light. The intensity of color is intense across both the purple and yellow zones, and the overall presence is one that reads both regal and sunlit, a dual personality that invites touch and admiration.

The gem left Brazil to be lovingly cut and shaped, where the cutter worked to honor the stone s natural divide between amethyst and citrine, orienting the pavilion and crown so that the color boundary reads like a deliberate brushstroke through the heart of the gem. The mixed brilliant cut delivers scintillation and depth while maintaining the clear windowed transparency that lets you peer into the stone s inner world. At eye level the stone is graded very very slightly included, a clarity that to the naked eye reads as clean and bright, yet under magnification reveals the small natural signatures that make this ametrine unmistakable. Those signatures are what I am most proud to describe, tiny feathery growth patterns that look like a fossilized wind, minute mineral crystals that sit like stars at the border of color, and delicate needle like inclusions that catch the light and create flashes that travel as you turn the gem. A few three phase inclusions and healed fissures add texture rather than distraction, acting as a provenance map that whispers of Brazilian formation and natural history. The gem has been heat treated as an enhancement to stabilize and refine the color balance, a disclosure we make openly so that you may appreciate the full story of how nature and human skill worked together to produce this living jewel.

Holding this 6.77 carat ametrine in hand it becomes easy to imagine settings that honor its bi color soul, a low bezel to frame the cushion silhouette, or a simple prong setting that allows light to enter from every angle and animate both purple and golden zones. On a ring it reads as a statement that changes with mood and light, the amethyst depth becoming introspective under evening lamps, while the citrine gold brightens in daylight and sunlight, making this gem exceptionally versatile for daily wear or special occasions. In our broader collection at The Natural Gemstone Company we often pair such multi tonal gems with singular fire, and it is worth mentioning the opal type known as Fire Opal, a stone characterized by warm body colors from yellow to orange to red, sometimes with an internal play of color that seems like an inner flame. Where ametrine presents a quiet duality, Fire Opal offers a bold, radiant single tone, and together they create a conversation of warmth and contrast that many of our clients find irresistible. If you enjoy stones that tell a geological tale while delivering wearable drama, this ametrine and our Fire Opal pieces are natural companions in a curated collection.

We stand behind the provenance and the craftsmanship of every gem we place in your hands, and this ametrine carries the hallmarks of natural origin from Brazil, meticulous cutting into a mixed brilliant cushion, precise dimensions of 12.69 x 10.23 x 8.61 mm, a weight of 6.77 carat, intense color intensity, excellent polish, and a clarity described as very very slightly included at eye level, with enhancement by heat treatment disclosed. The unique inclusions I described are not flaws to hide, they are personal signatures that separate this gem from the anonymous, they prove that this is not a manufactured likeness but a single, irreplaceable natural object that has been guided into its final form by human hands. At The Natural Gemstone Company we invite you to own more than an accessory, to own a story that began in the earth, was translated by cutters, polished to brilliance, and now waits to become part of your story. If you would like further photographs, magnified views of the inclusions, or consultation on settings that will best showcase the bi color transition, please reach out and I will gladly guide you through every detail.