3.55 Ct. Yellowish Green Sapphire from Tanzania

This transparent 3.55 carat cushion shaped yellowish green sapphire is presented with exacting proportions, measuring 9.44 x 6.69 x 5.75 mm, and cut to a mixed brilliant schema that balances pavilion depth and crown faceting for optimal light performance. The cutter has executed a moderate table and an evenly faceted crown that transitions into a pavilion with both brilliant style and subtle step facets, a combination that enhances both scintillation and color distribution. The overall depth of the piece calculates to approximately 71 percent relative to the mean of the length and width, a proportion that contributes to increased color saturation without sacrificing light return. The girdle is faceted and proportional, and the polish is graded excellent, yielding crisp facet junctions and mirror like facet surfaces that maximize internal reflection. Origin is Tanzania, and the stone is confirmed to have no enhancement, a characteristic that preserves the sapphires native crystal color and structure, and that distinguishes this gem for collectors and connoisseurs who prioritize untreated material.

Color grade is intense, with a distinctly yellowish green hue that displays lively interaction between yellow and green components as the stone is rotated and viewed under varied lighting. The mixed brilliant cut is calibrated to exploit this hue through a combination of pavilion angles that produce strong color concentration when light is returned through the table, and crown facetting that disperses flashes of lighter yellow green to create surface scintillation. The stone is graded very slightly included at eye level, which indicates that the inclusions are small, well distributed, and do not impede transparency or the transmission of light through the pavilion. These minor internal features act as microscopic light diffusers, in some orientations enhancing the stone s sparkle without creating visible blemishes to unaided sight. The absence of heat treatment or diffusion is consequential, because it confirms the sapphire s intense natural color is intrinsic to the corundum lattice and not the result of post extraction alteration, and because natural, untreated material often exhibits a depth and complexity of tone that treated stones rarely replicate.

When set into jewelry this sapphire s vibrant yellowish green will command attention through its intrinsic color and through thoughtful setting choices that emphasize contrast and light interaction. In a white metal mounting such as platinum or white gold the stone will read as a cooler green, with the metal providing a neutral backdrop that accentuates the gem s brilliance and the clarity of its bright flashes. In a yellow gold or warm rose gold mounting the yellow component of the hue will be emphasized, creating a richer, sunlit green that appears more saturated against the warm metal. A pavilion with an open back or a setting that allows light to enter from beneath will maximize the intense color, while a classic four prong or low bezel placement will preserve the cushion silhouette and permit table oriented light return. A halo of fine white diamonds will increase perceived saturation through contrast, making the central yellowish green appear deeper and more vivid. For designs that seek to exploit pleochroic effects, orienting the stone so that the table faces the primary viewing angle will reveal alternations between greener and more yellow tones as the hand moves, producing an animated color experience for the wearer.

At The Natural Sapphire Company we document provenance and workmanship, and this Tanzanian sapphire is presented with full disclosure of its untreated status, precision cutting, and excellent polish. Its combination of intense natural color, measured proportions, and secure clarity grade make it an exceptionally versatile choice for high end bespoke work, from solitaire rings that showcase single stone presence to three stone or halo compositions that amplify tone and brilliance. For designers and clients who prioritize durability as well as beauty the sapphire s corundum hardness is appropriate for everyday wear, while its optical characteristics promise a gemstone that will stand out in any jewelry setting through sustained color intensity and precise facet engineering.