0.62 Ct. Bluish Green Sapphire from Madagascar

This sapphire is a transparent, bluish green round gem weighing 0.62 carat with precise dimensions of 4.66 by 4.64 by 3.81 millimeters, originating from Madagascar and offered by The Natural Sapphire Company. The hue sits within a medium intense color intensity that balances blue and green components in a way that is both elegant and versatile when set. Clarity is graded as very slightly included when evaluated at eye level, indicating that the stone is effectively eye clean with only minor internal features that do not interfere with overall transparency. The gem has been heat treated, a stable and widely accepted enhancement that improves color uniformity and can reduce the visibility of minor inclusions, and the sapphire has an excellent polish which gives precise, mirror like facet faces and crisp facet junctions that are evident under magnification and to the naked eye in well lit conditions.

The mixed brilliant cut of this round sapphire has been specifically executed to maximize optical performance in a gem with its particular proportions. The cut marries a faceting arrangement that uses a brilliant pattern on the crown and upper pavilion elements with carefully controlled step or facet changes on the lower pavilion to manage light return in a deep set stone. The depth of the gem relative to its diameter is notable, and the deeper pavilion concentrates light along the central axis which increases apparent saturation and produces a lively central flash. The mixed brilliant design mitigates potential loss of brilliance that can accompany deeper proportions by creating multiple small scintillation facets that break up and return light as fine flashes across the face of the stone. The excellent polish ensures that light is reflected cleanly from each facet with minimal diffusion, which enhances contrast and sparkle, and the rounding of the table and crown angles has been selected to preserve the bluish green face up color while allowing for a lively interplay of light and shadow that reveals subtle pleochroic shifts between blue and green as the stone is moved.

For an educated buyer, the value proposition of this sapphire is grounded in a combination of origin, optical performance, and transparent material quality. Madagascar is an important source for sapphires that display a range of attractive greenish blue tones, and stones from this origin are recognized for good crystalline quality and pleasing color. The very slightly included clarity grade means that the gem remains visually clean to the eye which is a significant factor in assessing value, especially when combined with the transparency and the excellent polish. Heat treatment is disclosed and expected in trade practice, as it stabilizes and enhances the most desirable color without compromising the inherent durability or long term appearance of corundum, making this stone a reliable choice for daily wear. The mixed brilliant cut is a technical advantage for this size and shape because it enhances light performance and face up presence more effectively than a simple shallow or step cut would, giving a 0.62 carat stone a larger and more lively visual impact than its weight alone might suggest. In practical terms this sapphire will sit well in settings that allow light to reach the pavilion and showcase movement, such as an open prong or low bezel mounting, and it will harmonize with both white and warm metals depending on whether the buyer wishes to emphasize the bluer or greener elements of the color.