1.03 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This sapphire is a transparent, oval shaped gem weighing 1.03 carats, with exact dimensions of 6.96 millimeters by 4.92 millimeters by 3.69 millimeters. The stone has been fashioned with a mixed brilliant cut, combining facets intended to maximize both color distribution and light return. Clarity is graded as very very slightly included when evaluated at eye level, indicating that the gem appears essentially clean to the unaided eye, with only very minor inclusions visible under magnification. Color is described as medium in intensity, offering a balanced blue tone that reads as lively and immediately attractive in standard viewing conditions. The polish is excellent, contributing to crisp facet junctions and a bright, reflective surface. Enhancement is by conventional heat treatment, a stable and widely accepted practice that improves color and clarity while being fully disclosed. The stone is of Ceylon origin, sourced from Sri Lanka, a provenance that is historically associated with bright, lively blue sapphires and that contributes to the gem’s character and appeal. The Natural Sapphire Company offers this gem with full disclosure of its attributes and treatments.

The weight of 1.03 carats plays a central role in the value and rarity of this sapphire. Crossing the one carat threshold often represents a significant shift in market perception and pricing dynamics, because stones above this point are objectively rarer in the supply stream, and they command a premium per carat relative to smaller parcels of comparable quality. For faceted sapphires, the relationship between weight and size depends on cut efficiency, but a one carat stone that is transparent and eye clean, and that retains a strong and even color, will be substantially more sought after than numerous smaller examples. The mixed brilliant cut used here is an efficient way to preserve weight while optimizing the stone’s face up appearance and scintillation. The measurements yield an average dimension and a depth that translates to a depth percentage of approximately 62.1 percent when calculated against the mean of length and width, a proportion that supports a generous face up presentation while maintaining good light performance. That combination of true one carat plus size, transparent body, and efficient cutting increases rarity when compared to the larger population of sub one carat stones and contributes materially to replacement and resale value.

Clarity and color work together to further enhance value. The very very slightly included clarity grade, determined at eye level, means that the sapphire offers the aesthetic of an eye clean gem, preserving both light transmission and visual purity. This level of clarity supports higher pricing because it allows the medium blue tone to express itself without distraction, and because inclusions that are confined to microscopic scale do not interfere with durability or appear in normal wear. Medium color intensity is often preferred for fine jewelry, as it offers a balance between deep saturation and lively tone, permitting the gem to read strongly in daylight and artificial light without appearing too dark or too pale. The excellent polish sharpens reflections and facet contrast, increasing the perception of brilliance and depth. Heat treatment is a standard, stable enhancement that improves these attributes while remaining fully accepted in the trade when disclosed. The Sri Lankan origin imparts a particular typology of blue that collectors and connoisseurs recognize, a clarity of hue that frequently reads as luminous and clean, contributing to the stone’s market desirability.

Practical considerations for purchase and use are straightforward. At 1.03 carats and with the provided oval proportions, the sapphire will perform well in a range of mounting styles, providing enough presence for single stone engagement rings and fine pendants, while remaining compatible with bezel and prong settings. The mixed brilliant cut and excellent polish ensure attractive light behavior in everyday wear. The Natural Sapphire Company stands behind the description, provenance, and disclosed treatment of this gem, and can provide additional documentation and guidance regarding setting and care. Routine cleaning with warm soapy water and a soft brush is appropriate for finished jewelry, and professional inspection is recommended for initial setting or if any impact is suspected. This 1.03 carat Ceylon sapphire represents a measured balance of weight, color, clarity, and cut, with the carat weight serving as a decisive factor in both its rarity and its overall market value.