0.57 Ct. Bi Color Sapphire from Ceylon (Sri Lanka)

If you are searching for a single stone that combines the romance of an engagement ring with the intrigue of a collector piece, this 0.57 carat cushion shape bi color sapphire answers that need with quiet authority. Measured at 5.77 x 4.15 x 2.71 mm, the cushion silhouette with a mixed brilliant cut has been fashioned to maximize scintillation while maintaining a pleasing, wearable profile. The stone is transparent with a clarity grade of very slightly included when evaluated at eye level, and it displays a medium intense color intensity that shifts between cool cornflower blue and warm golden yellow as light and viewing angle change. The polish is excellent, there has been no enhancement, and the sapphire is a natural gem from Ceylon Sri Lanka, attributes that matter when you want authenticity, provenance, and enduring value. Shown on the finger in the accompanying images, the gem reads as both dainty and striking, ideal for a refined solitaire engagement setting or as the centerpiece in a bespoke collector mounting.

Beyond the rare bi color appeal, this sapphire stands out in brilliance compared to more common gems because of the combined effects of corundum physics and masterful cutting. Corundum has a refractive index that produces strong light return, and the mixed brilliant cut here translates those optical properties into lively flashes and internal depth that a similarly sized aquamarine or topaz often lacks. Whereas topaz and aquamarine are admired for their purity of color, they tend to present a more uniform, glassy appearance. A diamond will excel at white sparkle and fire, but it does not offer the dual tone pleochroism and color play that make a bi color sapphire endlessly engaging. Even among single color sapphires, this untreated Ceylon stone captures attention through its shifting palette and the way facets cradle both blue and yellow light in a single view. For anyone seeking a memorable engagement gem or a distinctive addition to a collection, The Natural Sapphire Company presents this piece as the solution that ends the search, combining natural origin, excellent finish, and a unique visual personality that will reward daily wear and close examination.