3.90 Ct. Ametrine from Madagascar

This extraordinary bi color ametrine is a rare and refined statement for the collector who seeks the singular, a gem that reads as both jewel and testimony to nature, a piece offered in true limited fashion by The Natural Gemstone Company. We present one beautiful transparent 3.90 carat emerald cut shape ametrine, measured precisely at 18.62 x 6.48 x 3.92 mm, a long and elegant rectangle that carries a naturally occurring division of purple and golden tones with medium intense color intensity. The gem has been carefully fashioned into an emerald cut so that the parallel step facets emphasize the linear color zoning while preserving the stone clarity, evaluated as very very slightly included at eye level, and a surface finish that reflects our highest standards in excellent polish. Originating from Madagascar, and enhanced by controlled heat treatment to stabilize and intensify its hues, this ametrine is not a mass produced commodity, it is an individual expression of geology and human skill, a piece reserved for those who understand that true rarity lies in attributes that cannot be replicated.

What gives this ametrine its unmistakable signature is the small, natural architecture within its crystal, a quiet map of growth zones and delicate internal textures that tell the story of the stone. Along the boundary where citrine gold meets amethyst purple, one can observe slender, oriented growth patterns that act like natural brush strokes, subtly shifting the way light passes through the prism of the gem. Minute needle like inclusions, and tiny two phase pockets that catch and hold light, create a soft internal scintillation, a whisper of movement when the stone is tilted. These features are not imperfections in the cosmetic sense, they are identifiers, natural fingerprints that confirm the gem as genuine and singular. Under magnification the inclusions form layered vistas, faint wisps and fine planes that sometimes present as tiny mirrored facets, enriching the overall depth and giving the gem an inner glow that changes with viewing angle. This internal character is what collectors prize, the knowledge that no other ametrine will replicate this particular arrangement of color, clarity, and internal architecture.

The choice of an emerald cut for this ametrine is purposeful, it amplifies the duality that defines the stone and frames the inclusions as curated elements of design. The long, rectangular proportions of 18.62 x 6.48 x 3.92 mm allow the purple to graduate into golden citrine across a measured canvas, each facet acting as a stage for the stone to perform its quiet drama. The excellent polish enhances the stone to the point where light slides across the step facets and pools within, making the internal needles and tiny two phase inclusions glow rather than interrupt. The very very slightly included clarity grade at eye level means that to a casual gaze the gem appears pristine and crystal clear, while to the connoisseur the internal signatures become revealing and intimate. Heat treatment has been applied with precision to ensure color balance and stability, while leaving the stone biologically honest with its natural inclusions intact, and the Madagascar origin adds provenance that collectors respect, because Madagascar is known for producing ametrines with vivid zoning and interesting internal character.

Owning this ametrine from The Natural Gemstone Company is to join a discreet circle of patrons who value authenticity, provenance, and the rare confluence of aesthetic beauty and natural storytelling. This is an ideal centerpiece for a bespoke ring or a refined pendant that allows the stone to sit long and proud, where its linear proportions can be admired and where its internal inclusions can be revealed through movement. Availability is inherently limited, because each such crystal is unique and cannot be reproduced, and because the best pieces are quickly claimed by those who recognize their worth. We encourage interested collectors to request detailed images, magnified views of the internal signatures, and our laboratory assessment documentation, so that you may examine the natural inclusions that create its unmistakable signature. For the buyer who demands distinction rather than fashion, this 3.90 carat emerald cut bi color ametrine from Madagascar represents a rare acquisition, a private luxury that confers exclusivity and provenance in equal measure.