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

One beautiful transparent 1.23 carat round shape bi color and parti sapphire is a rare offering that deserves attention, with dimensions of 6.34 x 6.25 x 3.86 mm, a faceted mixed brilliant cut, a clarity grade of very slightly included evaluated at eye level, a light color intensity, and an excellent polish, originating from Ceylon Sri Lanka, and untreated with no enhancement. At The Natural Sapphire Company we present this stone as an exceptional balance of size and natural character, and it stands apart from the more common market inventory where treated color, heavy inclusions, or synthetic material dominate listings. Many comparable stones under one carat lack presence and command lower premiums, while much larger stones often come with compromises in color uniformity or clarity, or greater prevalence of enhancement. This 1.23 carat weight sits in a sweet spot where the per carat value increases relative to smaller sizes, yet the stone retains a degree of rarity and collectibility that larger stones do not always guarantee, especially when the gem is an untreated parti sapphire from a respected origin like Ceylon Sri Lanka.

Weight is the single most decisive factor in how gemstones are valued in the market, and a 1.23 carat sapphire benefits from that market reality in several important ways. Pricing for natural sapphires rarely scales linearly with weight, rather the price per carat tends to rise as stones exceed common thresholds such as 1 carat, because buyers view anything above that mark as a true center stone candidate for fine jewelry. Compared to a 0.50 carat or a 0.75 carat sapphire the 1.23 carat example has noticeably greater finger presence and therefore attracts a premium from both retail clients and collectors. Conversely, while multi carat sapphires command high absolute prices, they are also more frequently subject to treatments or clarity compromises to achieve desirable color, making a natural 1.23 carat parti sapphire an elegant and comparatively rare choice. The mixed brilliant cut on this stone was chosen to retain weight while optimizing brilliance, a key consideration that shows our cutters prioritized both yield and light performance. The stone dimensions and 3.86 mm depth indicate proportions that translate into efficient light return, so the weight here contributes directly to the visual impact as much as to the value tag.

Beyond the arithmetic of carat weight, the untreated nature of this parti sapphire amplifies the importance of its 1.23 carat mass, because natural state stones are far less common and therefore command a disproportionately higher premium. Heat treatment is ubiquitous in the sapphire market and is often used to deepen color or improve clarity, but untreated sapphires from Ceylon carry a provenance premium and appeal to discerning buyers who value geological authenticity. In comparison to treated or diffusion enhanced stones, this sapphire offers longevity of appeal and a sense of rarity that is not simply a function of size. The clarity grade of very slightly included evaluated at eye level means that to most observers the gem reads as effectively eye clean while still bearing natural internal features that confirm its natural origin. Where many commercial sapphires show visible inclusions or fractures that necessitate filling or treatment, this stone presents a clean window into its internal structure and color zoning, and the bi color and parti character provide a living interplay of tones that is impossible to replicate faithfully with synthetics or surface treatments.

When comparing cut quality and finish, this stone outperforms many market alternatives, and the 1.23 carat weight enhances the benefits of that superior craftsmanship. The mixed brilliant cut produces a lively scintillation pattern that conventional step cuts or rudimentary cuts do not achieve, especially in a round shape where symmetry and facet precision matter for light return. Excellent polish ensures that light travels through the pavilion and crown with minimal surface diffusion, which is particularly important for a lighter intensity color sapphire because every ray of reflected light contributes to perceived saturation and sparkle. In contrast, lower quality stones with poor polish or inconsistent facet alignment can look dull even at larger sizes. The parti coloration in this sapphire gives it a unique visual identity, and when set the interplay of pale blue and subtle secondary hues will shift with viewing angle and lighting conditions, offering an appearance that is both personal and distinctive. Compared to uniformly saturated single color sapphires, a well proportioned parti sapphire of this weight invites more versatile design choices, and it often becomes a conversation piece while still holding strong intrinsic value.

For buyers weighing practical considerations, a 1.23 carat untreated Ceylon parti sapphire from The Natural Sapphire Company is an investment in durability, design flexibility, and enduring desirability. The size is ideal for a central engagement ring stone for someone seeking a refined yet noticeable presence, and it also adapts well to pendant or cocktail ring settings where light exposure can maximize the bi color play. Setting recommendations include rings with four or six prong heads to allow light to enter freely, or bezel designs for active wearers who desire protection without sacrificing the gem weight that defines the piece. From a resale and collection standpoint the combination of provenance, lack of enhancement, and the meaningful weight threshold enhances liquidity compared to smaller or treated stones. At The Natural Sapphire Company we provide full information on origin, cutting attributes, and clarity grading so that customers can make informed comparisons with other listings, and we stand behind our stones with transparent sourcing and support for setting and appraisal. Choosing this 1.23 carat bi color and parti sapphire is a decision to prioritize authentic rarity and refined craftsmanship over mass market uniformity, and it represents a superior option for buyers who value both the beauty and the lasting value of a natural sapphire.