0.53 Ct. Bluish Green Sapphire from Madagascar

This transparent 0.53 carat round bluish green sapphire from Madagascar is a distinctive example of natural corundum offered by The Natural Sapphire Company, and it combines an attractive size with precise proportions. The stone measures 4.85, 4.87, and 3.04 millimeters across its length, width, and depth, and has a mixed brilliant cut that balances face up color and lively scintillation. The color is medium in intensity, sitting in the bluish green range that is often described as teal or ocean green depending on light source, and the gem shows even color distribution across the table. Clarity is described as very very slightly included as evaluated at eye level, meaning the stone appears essentially eye clean in normal viewing conditions, with inclusions only detectable with magnification. The polish is excellent, and notably this sapphire is unenhanced, so its color and transparency are wholly natural, a characteristic that enhances desirability for connoisseurs and collectors.

The mixed brilliant cut used for this round sapphire combines a brilliant style crown with a modified pavilion, which is especially effective for a stone of medium color intensity. This cutting strategy preserves saturation by retaining more color in the face up presentation while producing strong return of light and attractive facet sparkle. With a depth of 3.04 millimeters on an average diameter around 4.86 millimeters, the depth to diameter ratio is approximately 0.63, a proportion that supports good light performance without making the stone appear too deep or too shallow in a mounting. The excellent polish ensures smooth facet junctions and crisp facet reflections, so light is returned as bright scintillation rather than absorbed by surface irregularities. For buyers who value both face up color and lively brilliance, a well executed mixed brilliant cut on a natural, untreated sapphire like this one offers a balanced and appealing visual result.

When comparing reflective qualities to other gemstones in the same category, it helps to consider optical properties and cutting philosophy. As a corundum, sapphire has a vitreous luster and relatively modest dispersion, so it will not show the rainbow fire characteristic of diamond or high dispersion stones such as zircon. Instead, sapphire rewards the viewer with strong white light return and intense flashes of light that result from well proportioned facets and a clean window through the table. Compared to other green to teal gems, such as green tourmaline or peridot, this sapphire typically displays crisper facet contrast and a firmer, more gemlike brilliance, because those silicate minerals often have lower refractive index and a softer, more velvety appearance. Against spinel, which can sometimes rival sapphire for brilliance and purity of tone, a fine sapphire will generally present deeper saturation and greater durability. Compared to garnet varieties like tsavorite, corundum tends to have a slightly less fiery look but a more refined scintillation when cut into a mixed brilliant profile, and it has the edge for everyday wear thanks to superior hardness.

From a value perspective the combination of natural origin, no enhancement, excellent polish, and very very slightly included clarity gives this 0.53 carat Madagascar sapphire a compelling proposition for educated buyers. Madagascar has become an important source of attractive teal and bluish green sapphires, and natural, untreated stones from this locality command a premium in the market compared with many heat treated or otherwise enhanced material. The modest weight and round shape make it versatile for a range of settings, including solitaire rings, halo mounts that will increase perceived size and sparkle, and precision bezel settings for a contemporary look that still protects the girdle. For engagement rings or frequently worn pieces its hardness and toughness ensure long term resilience, and the mixed brilliant cut will maintain lively reflections in both daylight and artificial lighting. At The Natural Sapphire Company we can advise on complementary metal choices to enhance the bluish green tone, such as warmer 18 carat yellow gold to emphasize the green component, or platinum and white gold to accentuate the blue facets and crisp scintillation. If you would like further details about viewing conditions, mounting recommendations, or to compare this sapphire with other natural unenhanced material, please contact us and we will provide additional photographs, facet diagrams, and expert guidance.