0.99 Ct. Bi Color / Parti Sapphire from Ceylon (Sri Lanka)

One of the rarest treasures in our collection at The Natural Sapphire Company is this transparent 0.99 carat round bi color or parti sapphire, a gem that combines classical proportions with an uncommon play of tone. Measuring 5.90 x 5.90 x 3.73 mm, faceted in a mixed brilliant cut and finished with an excellent polish, this stone was sourced from Ceylon Sri Lanka and is offered with no enhancement. Evaluated at eye level, its clarity is very very slightly included, which means the stone remains exceptionally clean to the unaided eye while preserving natural character and authenticity. The medium color intensity lets the two distinct color zones breathe, so every turn of the gem reveals a new arrangement of depth and light. Because true parti sapphires of this quality are seldom available on the market, owning this piece places you among a select few who appreciate the nuance of untreated, museum quality material.

When you compare its brilliance to more common gemstones the distinction becomes clear. Diamonds are renowned for their high dispersion and scintillation, and they return light in a very bright, white flash. This Sri Lankan parti sapphire takes a different route to captivate the eye. Its mixed brilliant cut has been executed to maximize return and scintillation while honoring the corundum crystal form, so instead of mimicking a diamond it offers a more layered and theatrical light performance. Where topaz or aquamarine can appear flat under strong light because of paler saturation or lower refractive play, this sapphire throws back flashes of cool blue and softer, almost silvery tones that move through the stone with each tilt. The very very slightly included clarity ensures that these flashes are not muted by internal obstacles, and the excellent polish creates crisp facet junctions that catch and send light with lively, lively faceting. In practical terms the sapphire also outperforms many common gems for everyday wear, because as corundum it carries a hardness and resilience that resists scratching and keeps its facets sharp and sparkling over time.

This gem is about more than optical performance, it is an emblem of rarity and bespoke ownership. Untreated parti sapphires of nearly one carat, sourced from Ceylon and cut with such refinement, rarely appear for sale more than once, and when they do they are quickly acquired by collectors and designers who understand their long term value. When you choose this sapphire you are choosing a single, unique signature stone that will form the heart of a bespoke creation, whether a ring, pendant, or custom pair of earrings. Our expert gemstone specialists at The Natural Sapphire Company can advise on settings that enhance the stone geometry to emphasize its bi color nature and maximize light return, recommending precious metal palettes and mounting styles that allow the contrasting tones to sing. For connoisseurs who prize provenance and natural state, the combination of origin, lack of enhancement, and superior cutting presents an opportunity to own a natural wonder that stands apart from mass market gems.

This sapphire is offered to an exclusive audience of collectors and clients who seek rarity rather than replication. It is a stone to be set with intention, worn with confidence, and passed down as an heirloom that tells a story of origin, craftsmanship, and impeccable taste. If you wish to explore bespoke setting options, request detailed imagery under varied lighting, or place a reservation on this exceptional Ceylon parti sapphire, our team at The Natural Sapphire Company will personally guide you through every step, ensuring that the finished jewel reflects the singular nature of the gem and the refined standards of its new owner.