1.20 Ct. Bi Color / Parti Sapphire from Madagascar

This 1.20 carat emerald cut bi color parti sapphire from Madagascar presents precise lapidary decisions that emphasize both color separation and optical clarity, with dimensions of 5.79 by 5.13 by 4.10 millimeters. The stone is faceted in a classic emerald cut, employing broad step facets on the crown and pavilion to create a hall of mirrors effect, and truncated corners to secure mechanical stability. The measured depth is approximately 75 percent of the mean girdle diameter, a proportion that favors internal color zoning and controlled light return rather than maximal scintillation. Clarity is graded as very slightly included when evaluated at eye level, meaning inclusions are minimal and do not impede the transmission of light, and the excellent polish produces crisp facet junctions and minimal surface diffusion, enhancing the gem to the standards expected from The Natural Sapphire Company. The intense color intensity amplifies parti behavior, so the faceting plan is deliberately conservative in crown angle and table size to reduce windowing and maintain saturated color across the table face.

Comparative to more common gemstones, this emerald cut parti sapphire behaves differently than a brilliant cut diamond or a mono chromatic blue sapphire, and that distinction is its primary appeal to knowledgeable buyers. Diamonds cut for maximum dispersion and scintillation use numerous small facets to break light into high frequency flashes, while typical single color sapphires are often faceted to balance tone and brilliance, prioritizing color uniformity. By contrast, this parti sapphire leverages pleochroic axes and localized color zoning, so the step facets produce broad, directional flashes and shifting hues of green and blue as the stone is turned, a visual depth that a brilliant cut cannot replicate. The result is a dynamic interplay of hue and luster, where color saturation and facet geometry create larger, more architectural reflections rather than fine scintillation, making the gem particularly striking in settings that expose the table and allow color movement to be appreciated. Heat treatment is reported, consistent with stable industry practice to enhance color and clarity, and the Madagascar origin is notable for producing parti material with crisp color boundaries and clean crystal habit, attributes that our lapidaries at The Natural Sapphire Company exploit to maximize both rarity and wearable beauty.