0.52 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This pear shape blue sapphire weighs 0.52 carat, and measures 6.12 by 3.98 by 2.75 mm. The gem has a mixed brilliant cut, with facet proportions that balance scintillation and depth of color. The material is transparent, evaluated as eye clean at eye level, indicating that no significant inclusions are visible without magnification. Color is described as vivid, and the polish is excellent, producing crisp facet junctions and lively reflection. The sapphire has been heat treated, a conventional enhancement that improves tone and saturation while remaining stable under normal wear. The origin is Ceylon, Sri Lanka, a locality renowned for producing sapphires with lively blue hues and good saturation. These objective attributes together define the physical identity of the stone, and they provide a reliable basis for assessment by gemologists, jewelers, and collectors.

Optically the stone presents a strong, even distribution of blue that benefits from the mixed brilliant cut. The arrangement of crown and pavilion facets enhances return of light to the viewer, creating a play of flashes that contrasts with areas of deeper color. Because the material is transparent and evaluated as eye clean at eye level, light transmission is efficient, permitting both depth of color and internal sparkle to be appreciated. The vivid color intensity situates the sapphire in a range that reads as distinctly blue without significant gray or green modifiers, and the excellent polish ensures that the surface contributes minimal diffusion or hazing. Heat treatment in this instance acts to stabilize and refine the color, and such treatment is widely accepted in the trade for natural sapphires, with effects that are permanent under normal conditions.

From a practical perspective this sapphire is well suited to a range of settings where durability and daily wear matter. Sapphire is rated 9 on the Mohs scale of hardness, and this inherent toughness supports secure prong, bezel, or custom settings for rings, pendants, and other pieces that may be worn regularly. The pear shape lends itself to classic solitaire arrangements, halo designs that enhance perceived size, and contemporary interpretations that emphasize the stone as the focal element. Care and maintenance are straightforward, warm soapy water and a soft brush being effective for routine cleaning. Ultrasonic cleaning may be used with caution, and extreme thermal shock or exposure to aggressive chemicals should be avoided to protect metal settings and any treated surfaces. Given the heat treatment noted, the color and clarity characteristics can be expected to remain stable through normal use, preserving the visual qualities that make the sapphire appealing.

At The Natural Sapphire Company we document origin, treatment, and the key gemological characteristics so that clients have a clear understanding of what to expect. Ceylon sapphires are valued for their lively color and historical provenance, and this example demonstrates those qualities in a compact, wearable package. Over time the stone will continue to captivate through its combination of vivid color, efficient light return, and well executed polish, attributes that resist fade or dulling with ordinary care. For those considering a bespoke setting or requiring additional certification and photography, our team can provide guidance on proportion, mounting options, and long term care to ensure the sapphire retains its presence and performance for years to come.