1.55 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This specimen is a transparent blue sapphire weighing 1.55 carats, cut into an elegant oval with dimensions of 7.25 by 5.51 by 4.44 millimeters, and presented by The Natural Sapphire Company. The cutting style is a mixed brilliant cut, combining a faceted crown with a pavilion designed to maximize both brilliance and depth of color. Clarity is graded as very slightly included when evaluated at eye level, indicating that inclusions are minimal and do not detract from overall transparency or brilliance. The color intensity is vivid, showing a deep and saturated blue typical of fine Ceylon origin material, and the surface finish is described as excellent polish, producing sharp facet junctions and clean light reflection. Importantly, this sapphire has received no enhancement, retaining its natural state from mine to market, and its documented origin is Ceylon Sri Lanka, a source long associated with quality blue sapphires.

Under different lighting conditions this sapphire will exhibit distinct qualities that highlight its cut and natural color. In bright natural daylight, especially indirect daylight, the vivid blue will appear rich and evenly distributed across the table and crown facets, while the mixed brilliant cut will return strong white light reflections from the crown, contributing to noticeable brilliance without washing out the inherent blue. Direct sunlight will increase contrast and sparkle, creating brighter facet reflections and a sensation of depth as light penetrates the stone and reflects from the pavilion facets. In shaded daylight or overcast conditions the blue will maintain saturation while becoming a touch deeper and more velvety, a characteristic that emphasizes the gemosity of Ceylon sapphires and the balanced tone of this specimen.

Artificial light sources will reveal complementary aspects of the sapphire that are useful for daily wear considerations. Under warm incandescent lighting the stone may take on a warmer appearance in the deepest zones, with the vivid blue showing subtle warmth without shifting toward purple or brown, due to the clean color and high polish. Cool white LED lighting will accentuate the blue saturation and increase perceived brightness, as the high proportion of shorter wavelengths in such light interacts with the sapphire to produce crisp, lively reflections. Candlelight and low intensity ambient sources will reduce overall brilliance while enhancing the gem private depth, producing a more subdued and intimate blue that appears almost velvety, with flashes of light on the facet junctions. Across these lighting environments the mixed brilliant cut balances return of white light and retention of color, allowing the sapphire to read as both lively and richly colored.

Practical considerations for setting and care follow from the gemological attributes. With a hardness of nine on the Mohs scale, sapphire is well suited for everyday jewelry use, including rings and pendants, while the very slightly included clarity and excellent polish mean that most settings will display clean transparency and brightness. A setting that allows light into the pavilion, such as a classic prong or four claw mount, will maximize brilliance, whereas a bezel setting will emphasize the depth of color and protect the girdle for active wear. Because the stone is untreated, its natural provenance and color stability are preserved, and routine care involves gentle cleaning with warm water, mild detergent, and a soft brush, avoiding harsh chemicals and high heat. The Natural Sapphire Company can advise on complementary settings that balance protection and light performance, ensuring the stone retains its optical qualities while being suitable for intended use.