1.53 Ct. Bi Color / Parti Sapphire from Madagascar

This transparent cushion shape bi color, parti sapphire weighs 1.53 carat and measures 6.94 by 6.51 by 4.12 mm, a compact proportion that reflects careful weight retention and symmetry control. The cutting style is faceted with a mixed brilliant cut, a deliberate combination of brilliant style crown facets and precisely proportioned lower pavilion facets designed to maximize both scintillation and color separation. The crown displays well defined star and kite facets that focus light through the broad table, while the pavilion geometry has been tuned to return light across the bi color zones, preventing the common issue of windowing in thin or shallow cuts. Medium color intensity allows both the cooler blue tones and warmer yellow tones to remain distinct without overpowering one another, and the excellent polish enhances facet crispness, producing sharp facet junctions and lively facet contrast when viewed face up.

Clarity is graded very slightly included when evaluated at eye level, indicating inclusions that are minor and do not interrupt the stone's overall face up beauty or compromise structural integrity. The cutter appears to have oriented the rough to place inclusions toward the pavilion, a typical craftsmanship technique that preserves apparent clarity while optimizing color distribution. As a parti colored sapphire, this gem exhibits discrete color zoning that shifts with movement, a result of both inherent pleochroism and the cutter's decision to preserve natural color boundaries rather than homogenize the material through aggressive reorientation. This approach highlights the natural character of Madagascar sapphires, and the mixed brilliant faceting accentuates the interplay between the two hues by creating multiple small windows of color that change with viewing angle. The result is a gem that offers dynamic visual complexity, stable light return, and a controlled balance between brilliance and saturation.

This sapphire has been heat treated, a widely accepted and stable enhancement for sapphires that enhances color uniformity and can improve transparency without materially affecting durability when performed under industry standard conditions. On the Mohs scale of mineral hardness, sapphire rates 9, second only to diamond at 10, which makes it significantly more durable than many common gem materials such as topaz at 8 and quartz at 7, and perfectly suitable for everyday wear in rings and other jewelry when set appropriately. Given the stone dimensions and pavilion depth, a secure four or six prong setting will protect the crown and corners of the cushion shape, while a bezel setting can offer additional protection for active wearers. Routine care with warm soapy water and a soft brush is recommended to maintain brilliance, and the excellent polish will respond well to professional cleaning and inspection. This Madagascar origin sapphire combines technical refinement, responsible disclosure of enhancement, and skilled cutting, and it is presented by The Natural Sapphire Company as a measured example of parti colored sapphire craftsmanship.