1.76 Ct. Greenish Blue Sapphire from Madagascar

This oval greenish blue sapphire offered by The Natural Sapphire Company is a precisely measured 1.76 carat, with dimensions of 7.95 by 6.15 by 3.89 millimeters. The gem is transparent, and has been fashioned to a mixed brilliant cut, combining a brilliant style crown with carefully arranged pavilion facets to optimize both scintillation and color depth. The clarity is described as very slightly included when evaluated at eye level, a grade that indicates minor natural features that do not interrupt the stone facing up or compromise its overall transparency. The color intensity is rated as intense, and the stone exhibits an excellent polish, attributes that together produce a lively face up appearance and refined surface finish. The sapphire is heat treated, a conventional and stable enhancement that improves color saturation without introducing foreign filling materials, and the gem is sourced from Madagascar, a locality known for producing sapphires with appealing blue green tones.

The mixed brilliant cut applied to this oval has been executed to balance brilliance and saturation, taking advantage of a brilliant crown to generate dynamic light return and a faceted pavilion plan that allows deeper color to be retained across the table. With a depth of 3.89 millimeters relative to the average of the length and width, the stone presents a proportion that yields approximately fifty five percent depth, a value that sits comfortably within the range preferred for even light distribution and optimal face up spread in oval sapphires. The facet junctions display tight symmetry and consistent angles, and the excellent polish ensures minimal surface diffusion of light, permitting crisp facet reflections. The oval outline, combined with the mixed cut, produces controlled scintillation in which bright flashes are balanced by areas of saturated tone, allowing the stone to read consistently intense even under varied lighting.

Color characterization is central to the gem quality of this sapphire, and the greenish blue hue is both distinctive and desirable for buyers seeking a nuanced blue that leans slightly to the cooler green spectrum. The intense color intensity indicates a strong chroma, and the distribution of color is even, avoiding windowing or overly dark zones. Sapphires derive their blue and green tones through trace element interactions, and material from Madagascar commonly shows combinations of iron and titanium that yield blue to green blue colors, which is consistent with this specimen. The very slightly included clarity grade observed at eye level means that under normal inspection the stone presents as clean and transparent, with small internal features that do not disrupt light passage or compromise durability. The excellent polish and stable heat treatment contribute to a clean visual presentation and allow the stone to exhibit its saturated hue with clarity and depth.

From a durability perspective this sapphire is highly suitable for everyday jewelry, as corundum ranks nine on the Mohs hardness scale, second only to diamond which is ten. This Mohs nine rating means the stone resists scratching from essentially all common materials encountered in daily wear, with the practical exceptions being diamond and other corundum which share or exceed its hardness. When compared to other popular gems, sapphires are significantly harder than topaz which is eight, and quartz which is seven, and they are comparable to ruby since both ruby and sapphire are gem quality corundum. Given its hardness and the stable nature of routine heat treatment, this Madagascar greenish blue sapphire is an excellent candidate for a ring, pendant, or other pieces intended for frequent use, although classic setting considerations such as protective prongs or a bezel can further safeguard the girdle and pavilion during active wear. Cleaning is straightforward with warm soapy water and a soft brush, and because no fracture filling is reported the stone tolerates ultrasonic cleaning under normal conditions, although extreme thermal shock and exposure to strong acids should be avoided. If you require exact plotting of inclusions or a laboratory report for documentation, The Natural Sapphire Company can assist with gemological verification and setting recommendations tailored to this elegant 1.76 carat oval sapphire.