1.38 Ct. Bluish Green Sapphire from Montana

This transparent cushion shaped bluish green sapphire weighs 1.38 carat and measures 6.64 by 5.70 by 3.80 mm. The pavilion and crown have been fashioned in a mixed brilliant cut which combines the depth and scintillation of brilliant facets with the soft outline of a classic cushion silhouette. Clarity has been evaluated as very slightly included at eye level, allowing the gemstone to present cleanly to the viewer while retaining the natural characteristics that authenticate a natural sapphire. The color displays an intense color intensity that sits between blue and green in an elegant bluish green hue, and the gem has an excellent polish that enhances light return across its table and crown facets. Enhancement is heat treated, a stable and widely accepted practice used to optimize color and clarity, and the sapphire originates from Montana, a source noted for producing finely colored sapphires with a distinct cooler spectrum.

Visually the stone offers a composed and sophisticated presence. The cushion outline contributes a soft, classical feel while the mixed brilliant cutting pattern delivers lively scintillation when the gem is moved under light. The bluish green tone is evenly distributed with slight variation in saturation near the pavilion that gives the stone depth without causing dark zoning. Very slight inclusions are present, but they do not detract from the stone at typical viewing distances, and they confirm the natural origin. The excellent polish creates crisp facet junctions and contributes to strong light return, so the stone reads with a lively yet refined shimmer rather than an overt sparkle. In daylight the sapphire tends toward a cooler, more blue leaning expression, while indoor lighting with warm temperature bulbs accentuates the green facets, offering a pleasing versatility in appearance.

For custom mounting the proportions of this stone suggest a design that balances presence and elegance. At 6.64 mm in length and 5.70 mm in width the gem sits comfortably as a prominent center stone for an engagement ring, a refined pendant, or a focal element in a bespoke cocktail ring. A four or six prong basket setting will allow maximum light entry and showcase the mixed brilliant cut, while a low profile bezel will emphasize the stone outline and provide secure everyday wear. Metal choices will influence perceived color, with platinum or white gold reinforcing the cooler bluish undertones, and warm 18 karat yellow or rose gold introducing a complementary contrast that brings forward the green facets. Because the clarity is very slightly included at eye level, settings that allow unobstructed viewing of the pavilion, such as open galleries or minimal metal undercarriage, will best demonstrate the stone transparency and polish.

Complementary gemstones can be used to accentuate different aspects of the sapphire in custom pieces. White diamonds provide classic contrast and additional light return, and a finely sized halo of small brilliant diamonds will make the center sapphire read larger and brighter without overpowering its unique hue. For a more tonal palette, pale mint tourmalines or light green sapphires will create a harmonious green gradient that emphasizes the cool green in the center stone. Warm side stones such as champagne diamonds or small yellow sapphires will introduce contrast that highlights blue components of the sapphire and creates a more vintage inspired warmth. For three stone compositions, tapered baguette diamonds in white metal flanking the cushion center will lend architectural balance, while pear shaped mint tourmalines set in rose gold can form an elegant, softer silhouette. Consideration of stone sizes and color balance is important, and modest side stones in the 0.05 to 0.25 carat range each will typically complement a 1.38 carat center without overwhelming it.

The Natural Sapphire Company offers support for translating this sapphire into a custom piece with attention to both aesthetic outcome and practical wearability. The Montana origin and heat treated enhancement will be documented as part of the stone description, and professional guidance on metal choice, setting type, and side stone selection is available to ensure the final design highlights the intense color intensity and excellent polish. Care recommendations for daily wear include periodic cleaning with warm soapy water and a soft brush, avoidance of harsh chemicals and extreme temperature shocks, and routine inspections of the setting to maintain secure prongs or bezel edges. For clients seeking certification, independent gemological reporting can be arranged to formalize the weight, measurements, cut description, clarity grade, treatment notation, and origin. For bespoke design inquiries The Natural Sapphire Company can provide CAD visualizations and wax models to preview proportions and pairing options prior to production.