1.11 Ct. Greenish Blue Sapphire from Montana

This transparent greenish blue sapphire weighs 1.11 carat, and it is presented in a classic round shape that measures 6.13 x 6.16 x 4.09 mm. The stone has been fashioned in a mixed brilliant cut that combines a brilliant facet pattern on the crown with controlled pavilion faceting to enhance fire and light return. The color is described as greenish blue with medium color intensity, and the surface finish is an excellent polish that preserves crisp facet junctions and lively scintillation. Clarity has been evaluated as very slightly included when examined at eye level, and the gem has been heat treated, which is the standard and stable enhancement applied to sapphires to optimize both color and clarity. This sapphire is sourced from Montana, a provenance that is prized for its cool, often subtly teal blue tones, and this origin contributes to the gemology and desirability of the piece. The Natural Sapphire Company presents this gem as a responsibly sourced, carefully graded example of Montana sapphire that suits both collectors and clients seeking a refined center stone for custom jewelry.

In practical gemological terms the clarity grade of very slightly included at eye level means the stone shows minimal inclusions that do not materially detract from face up beauty for most viewers, and these internal characteristics can serve as natural fingerprinting for future identification and appraisal. The mixed brilliant cut works particularly well for a round outline at this size, balancing face up spread with depth and light performance. With a depth of 4.09 mm relative to an average diameter of approximately 6.14 mm, the pavilion depth yields a depth proportion of approximately sixty seven percent, which is somewhat deeper than the shallow extremes, and this contributes to a more saturated face up color in natural light, especially for a greenish blue tone. The excellent polish ensures that the facets act as clean mirrors, increasing luster and minimizing surface graining, and together with the facet geometry this promotes lively brilliance and distinct facet contrast under varied lighting conditions. For an educated buyer, these measurable attributes provide reassurance about how the stone will perform in a finished setting, and they allow a jeweler to anticipate how the gem will interact with metal and accent stones.

The Montana origin of this sapphire is a meaningful part of its value proposition, because Montana sapphires are celebrated for their unique palette that ranges from clear cornflower blue to steel blue, teal, and greenish blue variants like this stone. Geologically, Montana sapphires often form in alluvial deposits and in metamorphic environments, and their color character tends to be cooler and more subdued compared with some tropical origins, which appeals to buyers seeking an understated and versatile blue. Heat treatment, which has been applied to this gem, is a stable and accepted enhancement in the trade, commonly used to remove silk and to bring out the best natural hue without compromising durability. This treatment does not obscure natural origin, and it is widely recognized and transparent in professional grading and sales. In terms of physical stability, sapphire is a corundum mineral with hardness nine on the Mohs scale, and this makes it an excellent choice for everyday jewelry, including rings and bracelets, where resistance to abrasion and chipping is important. For connoisseurs who value documented origin, natural inclusions for identification, and a balance between pleasing color and longevity, this Montana sapphire checks many of the boxes that informed buyers consider essential.

This 1.11 carat round greenish blue sapphire is particularly well suited to custom jewelry projects because its size and shape provide tremendous versatility for a range of designs. The round outline is the most adaptable for classic solitaires, halo settings, three stone layouts, and bespoke cluster compositions, and the mixed brilliant cutting maximizes life and sparkle when set with open prongs or with a delicate halo to emphasize the face up diameter. At 6.13 x 6.16 mm the gem is large enough to function as a primary center stone in an engagement ring or pendant without overwhelming a refined design, and its depth offers secure pavilion material for bezel or semi bezel settings where a modern low profile is desired. The medium color intensity allows the stone to read beautifully in both white and warm metals, with palladium or platinum settings emphasizing cooler tones, and warm yellow or rose metals bringing out subtle greenish undertones for a vintage inspired look. For clients who prefer a brighter and more brilliant appearance, a simple four or six prong setting will allow maximum light interaction, while those who want a contemporary protective mount will appreciate the security a bezel provides while still maintaining excellent face up presence.

At The Natural Sapphire Company we focus on providing detailed gemological information and practical guidance to support custom design choices, and we can advise on metal pairing, setting profiles, and side stone selections that will complement this Montana sapphire. For buyers who prioritize documented quality, the combination of a measured carat weight, exact dimensions, a named origin, and transparent enhancement information allows straightforward comparison with other stones and supports accurate valuation and insurance documentation. This sapphire represents a compelling option for an educated buyer seeking a durable, attractive, and characterful center stone that will perform well in everyday wear and retain appeal over time. If you are planning a custom commission, we welcome inquiries about setting options, matching stones for pair or trilogy designs, and imaging under several lighting conditions to preview how the greenish blue tone will read in your chosen metal.