0.65 Ct. Greenish Blue Sapphire from Montana

This 0.65 carat oval greenish blue sapphire from Montana presents a notable combination of color, transparency, and precision cutting. The stone measures 5.62 by 4.50 by 3.36 millimeters, and its mixed brilliant cut is designed to balance surface brilliance with depth of color, producing a lively recovery of light across the table and crown facets. The gem is transparent, with an intense color saturation that reads as a refined greenish blue in a variety of lighting conditions. The clarity is graded as very slightly included, evaluated at eye level, meaning the inclusions are minimal and do not interfere with overall visual performance when the stone is set. The finish is excellent, with a polish that enhances the stone s surface and allows the mixed brilliant faceting to operate at peak efficiency.

Technically, the mixed brilliant cut employed here brings together the scintillation and fire typical of brilliant faceting on the crown, with pavilion treatments that contribute to depth and color concentration. This approach preserves face up brilliance for smaller carat weights while maintaining an apparent presence beyond the numeric weight. At 0.65 carats and with the precise proportions of 5.62 by 4.50 by 3.36 millimeters, the gem sits comfortably within common design templates for rings, pendants, and earrings, offering a strong optical center without overpowering a delicate mounting. The intense color intensity, coupled with the transparency and excellent polish, delivers a stone that photographs and performs well in person, presenting a balanced and lively appearance whether viewed under natural daylight or warm indoor illumination.

Practical considerations are an important part of selecting a sapphire for everyday or special occasion use. As a corundum species, sapphire is one of the hardest natural gems, which makes it well suited to both daily wear and formal pieces that see occasional use. The heat treatment enhancement applied to this Montana stone is a stable and widely accepted process within the industry, applied to improve color and clarity while remaining permanent under normal wear conditions. Given the clarity grade of very slightly included as evaluated at eye level, the stone will retain a clean presentation once mounted, and the robust polish will aid in resisting surface wear. For mounting suggestions, this oval sapphire adapts to a range of settings, from secure bezel mounts for practical, everyday rings to open claw mounts that maximize light entry for more formal, statement pieces.

The versatility of this Montana greenish blue oval sapphire makes it appropriate for both casual and formal settings, offering a restrained yet distinct color that complements a broad range of metal tones and design styles. In casual contexts the gem suits simple, low profile settings that prioritize comfort and durability, while in formal settings it harmonizes with more elaborate designs that emphasize symmetry and accent stones. The Natural Sapphire Company provides detailed imagery and exact specifications for this stone, supporting informed decisions regarding setting, pairing, and care. For clients seeking bespoke work, our team can advise on proportions and mounting styles that preserve the stone s optical attributes, and on companion materials that will best showcase the intense greenish blue color and excellent polish.