1.82 Ct. Bluish Green Sapphire from Madagascar

If you are searching for a singular center stone that blends classic sapphire brilliance with a distinctly modern hue, this 1.82 carat oval bluish green sapphire from Madagascar answers that need. The gem measures 7.80 by 5.97 by 4.37 millimeters and has been cut in a mixed brilliant style to maximize scintillation while preserving depth of color. Its intense color intensity reads as a lively balance of blue and green, offering an elegant, versatile tone that flatters both warm and cool metal choices. With a clarity grade described as very slightly included at eye level and an excellent polish, this sapphire presents a clean, transparent face-up appearance that will read as lively and refined in a ring or bespoke piece. Importantly for collectors and those seeking lasting value, the stone is natural with no enhancement, a quality increasingly prized by connoisseurs and something The Natural Sapphire Company proudly represents in our curated selection.

Beyond its gorgeous color and fine finish, this sapphire’s reflective behavior sets it apart in the corundum family and compared to other gemstones a customer might consider. Corundum, the mineral family of sapphires, has a refractive index around 1.76 to 1.77 and relatively low dispersion, which means sapphires do not show diamond-like fire, but they reward the viewer with mirror-like facet reflections and vivid flashes of color. This bluish green sapphire, with its mixed brilliant cut, produces brisk, well-defined scintillation and bold color flashes that alternate between teal, forest green, and slate blue depending on viewing angle and light source. Compared to classic deep blue sapphires, which often exhibit a velvety, saturated glow, this specimen reads brighter and more dynamic because the green component lifts the perceived brightness and the cut produces lively light return. Against green sapphires and green tourmalines, this Madagascar sapphire offers stronger mirror-like facet reflections and superior toughness, thanks to corundum’s hardness of 9 on the Mohs scale, which keeps facets crisp over time. When compared with spinel and tourmaline of similar colors, the sapphire’s polish and facet sharpness produce more intense, concentrated flashes rather than the broader, softer flashes typical of those stones. Unlike emeralds, which often show a softer luster due to heavy inclusions and a lower refractive index, this sapphire maintains clean, high-contrast reflections that read as both brilliant and deep. The stone’s dispersion is modest, so you will not see rainbow fire the way you might in high-dispersion stones, but what you do gain is consistent, elegant sparkle paired with a saturated, changeable color that feels alive and wearable every day.

For someone planning an engagement ring or a standout collector piece, this oval offers an ideal combination of size, color, and workmanship. The mixed brilliant cut is particularly well suited to oval silhouettes because it preserves face-up weight while creating a play of light that flatters finger proportions and minimizes any visible windowing. With its excellent polish and very slightly included clarity at face-up inspection, the stone will set beautifully in a solitaire to emphasize its color, or in a halo to increase perceived size and amplify the flashes of green and blue. Because it is unheated and originates from Madagascar, it carries the story of a natural, untreated color which many buyers prize for rarity and authenticity. At The Natural Sapphire Company we can advise on mounting styles and metal choices to maximize the gem’s reflective strengths; for example, a low-profile platinum or 18 karat white gold setting will emphasize the sapphire’s cooler blue notes, while a warm yellow or rose gold mounting can coax out the green and give the gem a more vivacious presence. If your priority is everyday wearability combined with unique color and honest sourcing, this 1.82 carat bluish green Madagascar sapphire fulfills that brief with confidence and natural beauty.