4.02 Ct. Ametrine from Brazil

A rare offering from The Natural Gemstone Company, this transparent bi color ametrine weighs 4.02 carats and is fashioned into a classic emerald cut, the dimensions measuring 13.19 x 8.32 x 5.81 mm. The stone presents a refined dichotomy of violet and golden tone, a natural marriage of amethyst and citrine within a single crystal, and its medium color intensity allows the two hues to breathe in harmony rather than compete. Clarity is graded as very slightly included when evaluated at eye level, a testament to the crystal clarity that permits the gem to read as predominantly eye clean, while the excellent polish gives each step facet an immaculate mirror finish. This ametrine is heat treated, a standard and stable enhancement that elevates its hue balance, and it hails from Brazil, a source celebrated for producing some of the finest ametrines in the world. The elongated emerald cut amplifies the gematic architecture, offering long, elegant light paths that reveal a serene, architectural interplay of internal colors, and in the hand this gem reads as a study in restrained opulence rather than flamboyance.

When considering reflective qualities among its peers, this ametrine reveals its particular virtues with clarity and poise. Within the quartz family, amethyst and citrine share similar refractive indices and therefore similar approaches to light, but ametrine is singular in its ability to present two cohesive color centers at once, creating broad, flat flashes of color that move across the table as the gem is turned. Unlike brilliant cuts that scatter light into myriad scintillating sparks, the step cut of this emerald shape produces broad, linear reflections and a hall of mirrors effect that emphasizes depth of color and internal structure, a look that feels inherently sophisticated and quietly luxurious. Compared to bi color tourmaline, which can exhibit stronger pleochroism and a higher refractive index that yields a livelier play of light, this ametrine favors elegance over fireworks, delivering a luminous, pillared glow rather than overt brilliance. Against more highly refractive stones such as sapphire and spinel, which throw intense flash and dispersion, the ametrine’s reflective language is softer, more contemplative, and more about the dance of hue than about fire. For a collector who prizes rarity of color interplay and a temperament of refinement, the gentle, crystalline radiance of this Brazilian ametrine makes a compelling statement that is distinct from the bright dazzle of higher index gems.

To own this ametrine is to claim a piece that speaks of discerning taste, an heirloom ready to be set into a bespoke ring, a pendant, or a pair of cufflinks that will subtly declare provenance and refinement. The elongated emerald cut flatters the finger or the neckline with linear grace, its step facets cooperating with well considered settings to allow the bi color phenomenon to be viewed in full, rotating theatricality. This stone’s moderate carat weight and generous table mean it proportions well for both statement pieces and quietly luxurious everyday wear, and the stability of the quartz family, combined with the professional heat treatment applied, ensures that its color will remain an enduring signature for years to come. At The Natural Gemstone Company we present this ametrine not merely as a gem, but as an opportunity to possess a geological rarity, a distinct expression of nature that carries the warmth of Brazilian origin and the attentive hands of master cutters. For the collector, the connoisseur, or the celebrant of private luxury, this ametrine is an object of desire that affirms achievement, sophistication, and an intimate knowledge of fine gems.