1.20 Ct. Green Sapphire from Montana

This transparent green sapphire presents as a refined and versatile gem, weighing 1.20 carat, with dimensions of 8.89 by 5.45 by 3.38 millimeters, offered by The Natural Sapphire Company. The stone is fashioned in a fancy shape with a mixed brilliant cut, which gives it a lively pattern of internal reflections across its face up presentation. The color registers as a clear green with medium intensity, a balance that is deep enough to convey a pronounced color presence, and yet light enough to permit generous light return. Clarity is graded as very very slightly included, evaluated at eye level, and the inclusions are minute and well positioned so that they do not interfere with the overall transparency or the clean visual appeal of the stone. The polish is excellent, contributing to crisp facet junctions and a finished surface that enhances both scintillation and surface brilliance.

The mixed brilliant cut has been executed to emphasize light performance, combining the fire and sparkle characteristic of brilliant faceting with the shape related elegance of a fancy outline. The pavilion and crown proportions work together to return light through the table and crown facets, creating a balance of brightness and scintillation that reads consistently in photographic images and in hand. The relatively shallow depth, given the dimensions, provides a broader face up spread, which enhances perceived size without sacrificing brilliance. Because the stone is untreated, the cutter optimized the angles and facet layout to make the most of the natural tone and saturation, resulting in an even distribution of color across the table and minimal windowing. The excellent polish accentuates facet crispness and ensures that light scatters cleanly from the surface, supporting an intense and lively appearance when the stone is set and viewed from multiple angles.

When compared to more commonly encountered green gems, this Montana sapphire distinguishes itself through its combination of refractive properties, durability, and natural color stability. Corundum, the mineral species of sapphire, has a refractive index in the range of 1.76 to 1.77, which produces a level of brilliance and luster that exceeds that of beryl family stones such as emerald and aquamarine, which typically measure about 1.57 to 1.58, and that also surpasses many varieties of tourmaline that sit around 1.62 to 1.64. Diamond remains unsurpassed for brilliance due to its refractive index near 2.42 and higher dispersion, however a sapphire with good proportions and excellent polish will exhibit strong brilliance and a pleasing scintillation that can appear more lively than greener gems with similar color intensity. Emeralds often display richer green saturation but their inclusions and common clarity treatments can diminish live brilliance. This Montana sapphire, being unenhanced, combines a clean eye visible clarity with a medium color intensity that allows more light to traverse the stone and return to the eye, making it visually brighter in everyday lighting than many deeply saturated gems that trap or absorb light.

The provenance from Montana further adds to the appeal, as Montana sapphires are prized for their distinct and often subtle green to teal tonalities, and for stones that commonly present a natural, unheated profile. The absence of enhancement on this 1.20 carat green sapphire increases its desirability for collectors and for settings that emphasize natural origin and minimal intervention. At The Natural Sapphire Company, we present this gem as suited to a variety of settings, from a refined solitaire ring to a bespoke studio commission where the cutter and setter can work with the proportions and mixed brilliant facet pattern to maximize both face up presence and durability in everyday wear. The stone is hard, robust, and maintains polish well over time, an attribute that supports long term brilliance and surface condition. For clients seeking a green stone that balances color, clarity, and light performance, this transparent Montana sapphire offers a compelling combination of natural origin, measured proportions, and optical refinement, with the detailed specifications of 1.20 carat, dimensions of 8.89 by 5.45 by 3.38 millimeters, mixed brilliant cut, very very slightly included clarity evaluated at eye level, medium color intensity, and excellent polish.