1.55 Ct. Greenish Blue Sapphire from Ceylon (Sri Lanka)

At The Natural Sapphire Company we present a finely executed 1.55 carat oval shaped sapphire, measuring 8.27 by 6.06 by 3.78 millimeters, a gem that exemplifies technical precision and natural character. This transparent stone is fashioned in a mixed brilliant style, a faceting approach that combines a modified brilliant crown with a pavilion designed to balance scintillation and color saturation. The color is best described as greenish blue with an intense color intensity that remains uniform across the table and crown facets. The clarity has been evaluated at eye level as very very slightly included, indicating that the stone is visually clean to most observers, with only minor internal features that do not detract from overall appearance. Origin is Ceylon Sri Lanka, a provenance known for producing sapphires with nuanced and desirable hues, and the gem has undergone standard heat treatment, a stable enhancement that is widely accepted in the trade to improve color and clarity. The polish is excellent, allowing facet junctions to present crisply and minimizing surface disturbances that would otherwise interrupt light flow.

From a faceting and proportion perspective the oval exhibits a length to width ratio of approximately one point three seven, a proportion that yields a harmonious silhouette when set as a single stone or paired in matched designs. The measured pavilion depth of three point seven eight millimeters relative to the average of the length and width yields an effective depth of approximately fifty two point eight percent, a proportion that supports both depth of color and efficient light return. The mixed brilliant approach employed here typically features a well configured crown with modified brilliant facets that promote lively return of white light, while the pavilion facets are arranged to retain and concentrate the body color, rather than dispersing it into excessive fire. This balance is particularly important in a greenish blue sapphire where maintaining chroma is critical. Facet symmetry and alignment have been executed to a high standard, contributing to even brightness across the gem face, and the girdle is calibrated to provide secure setting tolerance without unnecessary material loss.

Color and clarity interplay defines the visual character of this sapphire, and the intense greenish blue is a product of both inherent trace element chemistry and considered cutting. The stone presents an even saturation, without abrupt zoning, and under slight tilt the gem reveals a subtle pleochroic shift between bluish teal and a deeper forest green, which is typical for Ceylon origin material and offers dynamic visual interest in movement. Heat treatment has been applied to enhance this color cohesion and to reduce absorption features that can mute brilliance, the result being a consistently rich tone that reads intense rather than heavy. The stated clarity grade of very very slightly included evaluated at eye level indicates inclusions that are small and well positioned, often minute crystals or fine silk like needles, which in many cases contribute to the overall character without compromising transparency. From a durability standpoint the internal features are non compromising, and the excellent polish ensures that light transmission is maximized, creating crisp facet reflections and minimizing any surface disruptions that could soften visual acuity.

In practical terms this one point five five carat oval sapphire is exceptionally versatile, suitable for both casual daily wear and elevated formal settings, a characteristic that we at The Natural Sapphire Company consciously strive to source and present. The stone is an elegant center for a refined engagement ring, its length to width balance providing an elongated profile without appearing overly narrow, and the depth proportion supporting strong color even under the diffuse light of indoor environments. For a more contemporary everyday piece the gem sets well in tension or bezel motifs where the stable girdle and carefully managed depth contribute to a comfortable profile, while in formal jewelry the intense greenish blue will read as a sophisticated focal point when paired with white metal accents that emphasize brilliance, or when contrasted with warm metals that amplify the greener notes. Recommended settings include a four or six prong mounting to optimize table exposure and light entry, or a low profile bezel that showcases the stone for active wearers, and the gem also performs beautifully as a pendant or in a pair of earrings where matched color and faceting deliver coordinated impact. The Ceylon origin and the documented heat treatment are valuable provenance notes for discerning buyers who prioritize both natural character and responsible disclosure. For further technical information or to discuss custom mounting options our specialists at The Natural Sapphire Company are available to provide detailed measurements, facet maps upon request, and practical recommendations to ensure that the final piece aligns with both aesthetic intent and long term performance.