0.69 Ct. Green Sapphire from Madagascar

This transparent, 0.69 carat green sapphire, precisely cut to an emerald shape and measuring 5.21 by 4.05 by 2.92 millimeters, exemplifies attributes that matter to informed buyers. Graded as very slightly included at eye level, this stone presents an attractive balance between clarity and natural character; the minor inclusions do not distract from the gem’s visual appeal and remain consistent with a high-quality, untreated sapphire. The intense color intensity and excellent polish work together to deliver a rich, vivid green that reads boldly in daylight and under jewelry lighting. Crucially, this sapphire has received no enhancement, a factor that materially increases its rarity and long-term value, and its Madagascar origin is significant as that region has produced many of the market’s most desirable, naturally colored sapphires in recent years. With corundum’s hardness at nine on the Mohs scale, this stone offers superior durability for everyday wear compared with other green gemstones, making it an excellent choice for a solitaire ring, three-stone setting, or refined pendant.

When assessing brilliance and optical performance, it is important to compare corundum to more familiar gems. Diamond exhibits strong brilliance and fire due to its high refractive index and dispersion, so it scatters light into vivid spectral flashes that corundum cannot match. By contrast, sapphire’s refractive properties produce a different, often more sophisticated effect: concentrated color and a steady, lively luster rather than broad fire. The emerald cut on this green sapphire intentionally emphasizes that color and clarity, employing step facets that create a hall-of-mirrors effect and distinct internal reflections, rather than the scintillation of brilliant cuts. Compared with emerald, which often carries significant surface-reaching inclusions and is commonly oiled, this unenhanced Madagascar sapphire offers clearer transparency and greater durability. Against green garnets or peridots, the sapphire stands out for its combination of hardness, stable intense hue, and the credibility conferred by an untreated origin. At The Natural Sapphire Company we highlight these factors because educated buyers value provenance, natural state, and the way cut and polish articulate color; this emerald-cut, intense green sapphire is therefore an exceptional, wearable gemstone that marries technical quality with rare, natural beauty.