16.93 Ct. Ametrine from Madagascar

At The Natural Gemstone Company we are proud to present an exceptionally rare ametrine that stands apart from the ordinary, a single remarkable stone whose presence defines exclusivity and tasteful refinement. This is a transparent, bi color ametrine weighing 16.93 carats, expertly fashioned into an elegant oval measuring 18.39 by 14.35 by 9.77 millimeters, and finished with a mixed brilliant cut that was chosen to maximize scintillation while preserving the gem’s natural color zoning. In a market where ametrines are typically encountered in modest sizes and more muted color divisions, a specimen approaching seventeen carats is extraordinary. The size alone transforms this gem from a collectible into a centerpiece, an heirloom quality stone that will not be replicated for buyers seeking something truly distinctive. Originating from Madagascar, this piece carries the provenance of a rising source for fine colored quartz varieties, and its heat treated enhancement has been applied conservatively and transparently to reveal its best color balance and clarity. For connoisseurs who value provenance, rarity, and polished craftsmanship, this ametrine represents a rare opportunity to own a single, showstopping example.

What sets this ametrine apart is the luminous and refined interplay of its two colors, rendered with a medium light color intensity that gives the stone an appealing, wearable glow without overwhelming saturation. The amethyst tones and citrine tones are presented in a delicate, painterly gradient rather than a harsh division, creating a living depth that changes subtly as the gem is turned. The mixed brilliant cut enhances light return, creating an internal tapestry of flashes that alternately emphasize the lilac and honeyed hues, while the excellent polish ensures that each facet interacts crisply with light. Evaluated at eye level, the stone is eye clean, offering clarity that allows uninterrupted appreciation of its bi color character and internal brilliance. This combination of size, clarity, and refined color zoning is exceedingly uncommon in ametrine, and the result is a gem that feels both refined and unmistakably rare. Collectors and designers will recognize immediately how its substantial dimensions and sparkling facet pattern allow the color zones to read differently from every angle, producing a dynamic presence that becomes the focal point of any setting.

Imagine this ametrine set as the centerpiece of a bespoke creation, the sort of ring or pendant reserved for the most distinguished commissions, a piece that announces both taste and discernment. At 18.39 by 14.35 millimeters, the stone is ideally proportioned for a dramatic solitaire or a halo composition that frames its bi color magic with diamonds or warm accent stones. Design choices might include a low profile bezel to protect the gem while showcasing its oval silhouette, or a cathedral-style prong setting to maximize light entry and show the shifting hues to their fullest advantage. For metal pairing, warm 18 karat yellow gold will amplify the citrine side, while white gold or platinum will accentuate the amethyst tones, allowing the owner to tailor the emotional character of the piece. Because of the gem’s excellent polish and stable quartz structure, it is suitable for fine jewelry intended for regular wear with sensible care, and its generous weight gives a palpable sense of value and presence when handled. At The Natural Gemstone Company we offer design consultations and custom mounting services so that this singular ametrine can be brought to life in a way that honors its rarity and secures its place in your personal collection.

Owning this 16.93 carat Madagascan ametrine means joining a very small circle of collectors and clients who possess stones of this scale and beauty, a privilege we celebrate at The Natural Gemstone Company by offering personalized support from acquisition through to finished jewelry. We fully disclose that the gem has been heat treated to enhance its color distribution, a standard and stable practice that we document for our clients, and we provide condition details such as mixed brilliant cutting, eye clean clarity at loupe-free viewing, medium light color intensity, and excellent polish so that your purchase is informed and confident. Availability is limited to a single specimen, and for those who respond with the desire to secure something unmatched, we arrange private viewings, bespoke design planning, careful certification, and secure shipping to ensure the experience of ownership is as exceptional as the gemstone itself. If you seek an ametrine that is both a statement of refined individuality and a tangible asset of rare natural beauty, this gem is an unparalleled choice, an invitation to own a truly singular treasure that will be admired for generations.