13.88 Ct. Rainbow Moonstone from Madagascar

One superb and rare example of rainbow moonstone is presented here by The Natural Gemstone Company, a transparent oval gem weighing 13.88 carat, expertly faceted to awaken the full character of its material. This remarkable piece measures 17.63 by 14.17 by 10.84 mm, a generous scale that announces itself on a finger or as the centerpiece of a bespoke pendant. Originating from Madagascar, with no enhancement of any kind, the moonstone retains its natural integrity, and reveals a light color intensity that allows its spectral qualities to breathe freely. At eye level the clarity is graded slightly included, an honest and natural signature that does nothing to diminish the gem's visual impact, and the polish is excellent, a final craftsmanship touch that creates mirror like facets and crisp facet junctions for maximum reflection. Owning this stone places you among an exclusive few, a select collector or connoisseur who appreciates original material and artisanal faceting, and who values provenance as much as presence.

The geometry of the mixed brilliant faceting is the feature that truly defines this moonstone, and it is here that the gemmaker has married science with artistry to breathtaking effect. The crown is faceted with a thoughtful balance of star and kite facets that guide light into the table, while a carefully graduated pavilion returns light in a controlled spectrum of flashes. This interplay of angled planes creates a dynamic visual performance, as each facet becomes a stage for adularescence and rainbow iridescence to unfold, minute by minute, movement by movement. The mixed brilliant cut enhances both sparkle and color play, drawing out soft blues, pale violets, and fleeting green and golden flashes that appear to shift with the light and the angle of view. Because the cutting emphasizes geometric clarity and symmetry, light is channeled rather than scattered, resulting in a lively yet elegant scintillation that is rare in moonstones of this size. The slight inclusions present at eye level lend character to the gem, and act like delicate signatures that can accentuate the path of light, giving the gem a unique internal topography that enhances rather than hinders its optical drama.

For the client seeking a singular creation, this 13.88 carat oval rainbow moonstone is an invitation to commission a piece that will be treasured for generations, a work of wearable art that speaks softly but unmistakably of exclusivity. Visualize this gem set in a custom piece where the faceting is allowed to breathe, where prongs or a bezel are designed to let light enter and escape freely, and where the overall metalwork complements rather than competes with the moonstone s subtle flashes. The dimensions of 17.63 by 14.17 by 10.84 mm mean that the gem carries real presence, a balance of weight and scale that is luxurious without being ostentatious, and that will sit beautifully atop a finger or rest as a luminous focal point on a neckpiece. At The Natural Gemstone Company we curate only pieces of genuine character and verifiable origin, and this Madagascar rainbow moonstone is a clear example of our commitment to rarity, honesty, and excellence in both material and cutting. Enquire directly to reserve this gem, and allow our team to advise on settings, certifications, and bespoke options that ensure your acquisition is as unique as the gem itself.