16.40 Ct. Ametrine from Brazil

A gem like a whispered promise, this transparent 16.40 carat fancy shape bi color ametrine arrives like twilight folded into a single stone, dimensions 19.37 x 12.30 x 10.15 mm, sourced from the sunlit mines of Brazil. Its body carries the royal purple of amethyst and the warm honey of citrine, fused by nature into a seamless duet of color, each hue holding the other in gentle balance. The step cut has been applied with thoughtful restraint, creating broad mirrored planes that invite slow, deliberate gazes, rather than a frantic chase for tiny sparks. With a clarity grade of eye clean evaluated at eye level, the stone offers an uninterrupted passage for light, a pure channel through which color and reflection may sing. Enhanced by careful heat treatment to enrich and stabilize its bicolored heart, and finished with an excellent polish, this ametrine sits as a romantic artifact, a talisman of transitions, offered to you by The Natural Gemstone Company.

Under the right light this ametrine becomes a moving painting, each facet a shiver of color that seems to breathe. The step cut produces broad flashes that wash across the stone in planes like reflected moonlight on still water, the purple deepening into velvet where the facets step down, the golden zones brightening like sunrise captured in glass. Because the gem is eye clean, those broad planes remain unclouded and precise, allowing the intense color intensity to register fully against the skin and the surrounding metal. The excellent polish lends the stone a mirror like clarity, so that every facet edge becomes a ribbon of light, drawing the eye along the geometry of the cut. Heat treated to refine its tonal balance, the ametrine retains a natural soul, a Brazilian provenance that echoes in the warm undertone of the citrine portion, and in the cool, dignified hush of its purple side.

When compared to other gemstones in its category, this ametrine occupies a beautiful middle ground between brilliant fire and calm reflection. A round brilliant amethyst or citrine will scatter light into a thousand tiny stars, offering scintillation that delights with motion, while this step cut ametrine favors broad, architectural flashes, a noble display that reads as elegance rather than exuberance. Against other ametrines, this example stands out because of its size and the purity of its eye clean clarity, the kind of surface that lends itself to dramatic color separation without muddiness. Compared to bicolor tourmalines or sapphires, which may show sharper, more abrupt color zoning, this Brazilian ametrine presents its two tones with a softer, more painterly transition, as if one hue were pouring slowly into the other. In relation to quartz family stones that are left in rough or with cabochon finishes, the step cut here allows for reflective planes that create layered depth, a sensation like viewing a distant landscape through a cut window. And when set against diamonds or high dispersion stones, this ametrine will not compete on sheer fire, instead offering a different kind of reward, an intimate, color centered reflection that changes with every tilt and tender glance.

Imagine this ametrine cradled in a simple bezel, or elevated in a minimal claw setting that allows light to enter both from above and from beneath, the two colors becoming a personal sunrise and moonrise on the hand. It is a piece suited to vows and anniversaries, to those who cherish a stone that speaks in tones rather than in flashes. The Natural Gemstone Company presents this gem not as an ornament, but as a companion for moments that seek meaning, a jewel that rewards patience and invites devotion. Care is uncomplicated, as heat treated ametrine maintains stable color under ordinary wear, yet its beauty is best appreciated when given light and time, when the wearer allows the step cut to reveal its broad flashes and soft gradients. For a collector who seeks the romance of color and the refinement of precision cutting, this 16.40 carat bi color ametrine offers a rare combination, a living poem of purple and gold, polished to an excellent sheen, a reminder that light itself can be shaped into a promise.