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

This exquisite transparent 2.25 carat cushion shape bi color parti sapphire from Ceylon measures 6.82 by 6.79 by 4.79 millimeters, and it has been faceted in a mixed brilliant cut to balance scintillation with color depth. The mixed brilliant pavilion and crown proportions optimize return of light while preserving the gem s natural color zones, and the cutting style is particularly effective at showcasing bi color character and pleochroism. At a depth of about seventy percent the gem retains a lively face up presence while allowing light to penetrate sufficiently to reveal zonal color separation. The clarity is described as very slightly included when evaluated at eye level, which means that minor natural features are present but do not interfere with visual performance to the naked eye, and under ordinary viewing conditions the stone appears clean and transparent. The polish is excellent, which contributes to strong light reflection and increases apparent brilliance, and the stone has been heat treated, a stable and widely accepted enhancement that improves color homogeneity and is fully disclosed by The Natural Sapphire Company.

From a gemological perspective this sapphire s intense color intensity and bi color nature make it desirable to an educated buyer, because parti sapphires combine rarity of color zoning with the stability and durability of corundum. Bi color sapphires frequently show different hues when viewed from different angles, due to pleochroism, and this example displays distinct, saturated color areas that read as complementary tones on the table and crown facets. The term very slightly included at eye level denotes a clarity that is superior to heavily included commercial material, and when combined with the intense color and excellent polish the result is a gem that performs well in jewelry while retaining investment appeal. Heat treatment in Sri Lanka is a traditional, controlled process that enhances color without compromising the gem s integrity, and because it is a standard and accepted treatment in the trade, the market remains robust for well cut, heat treated Ceylon sapphires of this quality.

When comparing the hue and tone of this Ceylon bi color sapphire to stones from other famous localities certain differences become apparent that inform value and aesthetic preference. Ceylon sapphires are renowned for their bright, lively cornflower to violet blue hues with medium to medium dark tone and lively saturation, and this stone s intense color reads as richer than the typical light cornflower blues yet retains the clarity and brightness associated with Sri Lankan material. By contrast Kashmir sapphires are famed for a velvety deep blue with a slightly softer tone and a diffuse silk that produces a signature glow, they tend to be more uniformly deep and plush in appearance and rarely display the dramatic bi color zoning seen here. Montana sapphires from the United States more often exhibit lighter pastel tones and softer saturation, frequently in greenish blue or teal ranges, which makes them gentler and more subtle compared to the intense, high saturated color zones of this Ceylon parti sapphire.

Further comparison helps clarify the place of this sapphire in a collector s view. Madagascan sapphires can approach Ceylon in brightness and saturation, and sometimes deliver very strong, pure blue tones, yet they often lean toward a deeper or darker overall tone when strongly saturated. Australian sapphires usually present darker, inky blue to greenish blue hues with stronger tone and less transparency in the most saturated examples, which contrasts with the transparent, intense zones and lively face up brilliance of the present gem. Stones from Myanmar are historically prized for deep royal blue, but they are rarer in parti or bi color form, while Padparadscha sapphires from Sri Lanka and Madagascar occupy a completely different pink orange hue class. In this context the Ceylon origin of the presented parti sapphire is significant, because Sri Lanka produces a wide palette of colors including fine bi color material, and the island s geological conditions favor clean, well crystallized corundum with the combination of hue, tone, and clarity observed here.

For a discerning buyer The Natural Sapphire Company offers transparency on origin, treatment, and cutting, and that information matters when assessing value. This 2.25 carat cushion shape parti sapphire combines several factors that enhance both aesthetic and market appeal, namely notable carat weight for a parti sapphire, transparent material with very slightly included eye level clarity, mixed brilliant faceting with excellent polish, intense color intensity, and fully disclosed heat treatment from Ceylon. Together these attributes make the gemstone attractive for fine jewelry that showcases color play, and appealing as a specialist collector piece because true bi color sapphires that remain transparent, strongly saturated, and well cut are comparatively uncommon. For care and long term enjoyment warm soapy water with a soft brush is recommended, avoiding harsh chemicals and abrupt temperature changes, and The Natural Sapphire Company can assist with independent laboratory grading if formal certification is desired to document origin, treatment, and measured proportions.