1.15 Ct. Green Sapphire from Montana

One beautiful transparent 1.15 carat round shape green sapphire is offered by The Natural Sapphire Company, a gem that combines classic proportions with an uncommon natural hue, dimensions of 5.99 x 5.98 x 4.01 mm, and a mixed brilliant cut that maximizes both brilliance and scintillation. This stone is transparent, with a medium color intensity that reads as a refined mint to grassy green in many lighting conditions, and an excellent polish that yields crisp facet junctions and mirror like surfaces. The clarity is graded as very slightly included evaluated at eye level, a grade that for practical purposes maintains an open face up appearance while also confirming the gem is natural and untreated. Enhancement status is no enhancement, which for many collectors and connoisseurs adds important provenance value, since the stone presents the original state of the sapphire as it formed in Montana. The combination of a clean eye level appearance, a controlled size of 1.15 carat, and the classic round silhouette make this sapphire extremely versatile for bespoke engagement rings, refined cocktail rings, or as a center stone in a more contemporary setting.

The color profile of this Montana green sapphire is a central part of its appeal, and with medium intensity the green reads as lively without being overstated, allowing for a broad range of metal pairings and complementary gemstones. Montana has long produced sapphires with subtle and complex coloration, often showing delicate mixtures of yellow and blue undertones that together produce green, and the resulting hue in this gem is an elegant example of that geological signature. Because the sapphire is natural and has received no heat or other laboratory treatments, the observed color and saturation are the direct result of trace elements and formation conditions, which educated buyers often prize for both aesthetic and investment reasons. The stone is also well matched in tone across the table and lower facets, providing an even color distribution that enhances perceived size and makes the gem read larger on the finger than its carat weight alone might suggest. For collectors seeking provenance, Montana origin is well regarded, and The Natural Sapphire Company supports documented sourcing to assure that the story of this sapphire is as verifiable as its physical attributes are attractive.

The mixed brilliant cut of this round sapphire is deliberately chosen to optimize how the stone handles light, and understanding this cut explains much about the gem’s lively appearance. A mixed brilliant cut pairs a brilliant style crown with a pavilion that may incorporate step or modified facets, the intention being to control light return and to create both strong internal brilliance and dynamic surface scintillation. In practice this means the crown facets act to break incident light into bright white flashes, while the pavilion facets return that light toward the viewer in a balanced manner, producing broad flashes of brilliance and smaller pinpoint sparkle as the stone moves. With a diameter of about 5.99 mm and a pavilion depth near 4.01 mm, the cutter has maintained proportions that favor good light return, avoiding an overly deep pavilion that would trap light, and also avoiding an overly shallow profile that would cause leakage. The excellent polish further supports the cut, because polish quality influences the sharpness of facet reflections and the perceived contrast between light and dark areas. The result is a round mixed brilliant that displays lively performance under varied lighting, from soft interior illumination to stronger daylight, and which presents a pleasing mix of brightness and scintillation for the wearer.

Clarity and inclusion type are important considerations for an educated buyer, and the very slightly included grade evaluated at eye level tells you what to expect with confidence. Inclusions in sapphires can take many forms, from tiny crystals to rutile needles, and in this gem the inclusions are minimal and do not materially interrupt the face up appearance. For many professional jewelers and collectors, very slightly included material is an excellent balance of rarity and value, offering transparent body color and visual appeal while still confirming natural growth features that authenticate the stone. The absence of enhancement adds further market distinction, as untreated sapphires from respected sources like Montana often command premium interest among discerning buyers. Practical considerations also favor this gem, because the excellent polish and durable corundum hardness make it suitable for daily wear in a carefully designed setting, and the round shape allows for efficient and elegant bezel or prong mounting. The Natural Sapphire Company stands behind the quality and origin of this sapphire, and we invite customers to request additional images, viewing options, and documentation, so that you can assess the stone in hand and feel confident about how this uniquely natural, precisely cut, and visually appealing green sapphire will perform both as a piece of jewelry and as a lasting addition to a curated collection.