1.64 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 1.64 carat transparent oval shape blue sapphire presents a refined combination of size, proportion, and color that is immediately apparent on inspection. The gem measures 8.62 x 5.55 x 3.99 mm, dimensions that suit a wide range of fine jewelry settings from classic solitaires to more contemporary multi stone designs. Cut as a mixed brilliant, the pavilion returns light with lively scintillation while the crown facets preserve the depth and saturation of the blue hue. The stone exhibits intense color intensity, a level of saturation that emphasizes purity of tone without moving into overly dark or inky character. With excellent polish across the facet junctions, the surfaces present clean, mirror like reflections that enhance both brilliance and the perception of transparency.

From a clarity perspective, this sapphire is graded slightly included, evaluated at eye level, a realistic and commonly encountered grade for natural corundum that conveys important information about the stone in practical use. The inclusions are not suggestive of fracture risk, and when the gem is set they will generally be unobtrusive to the viewer. Slightly included stones often offer a favorable balance between visual appeal and value, as they retain strong color and transparency while remaining accessible compared with fully eye clean material of equivalent color. The mixed brilliant cut, paired with the excellent polish, mitigates the visual impact of internal features, distributing light and minimizing contrast that would otherwise draw attention to inclusions. Transparency is an important attribute of this specimen, and the combination of clarity grade, cut style, and polish allows the sapphire to perform with notable brilliance and depth.

The provenance of this sapphire, Ceylon Sri Lanka, contributes materially to its desirability and perceived value. Sri Lanka has a long and well documented history as a source of high quality sapphires, a history that includes centuries of mining and a developed understanding of the geological environments that produce the finest material. Ceylon sapphires are frequently associated with lively, pure blue tones that are described as cornflower to medium deep blue, and the islands geology, which includes gem bearing gravel and metamorphic host rocks, often yields stones with a balance of saturation and lightness that is particularly attractive in faceted gems. For collectors and connoisseurs there is an added layer of provenance value when a sapphire is confirmed to originate from Sri Lanka, because that origin signals a predictable set of color characteristics and a historical legacy in the trade. Importantly, this particular sapphire is unenhanced, no enhancement, a factor that has direct implications for both durability and market position. Many sapphires in commerce receive heat or other treatments to improve color and clarity, so an unenhanced Ceylon stone that displays intense color and strong clarity characteristics commands attention for its natural state and for the geological story it carries.

Practical considerations for use and care are straightforward given the gemological properties of this sapphire. At 1.64 carat and with the stated dimensions, the gem fits comfortably into a variety of mounting styles while preserving its optical balance. The hard, durable nature of corundum makes sapphire suitable for daily wear, and the absence of enhancement simplifies long term stability concerns, as there are no treatments that could be affected by heat or chemical exposure during routine maintenance. When setting the stone, attention to prong placement and protective gallery design will preserve the integrity of the slightly included clarity and maintain the polished surfaces. Cleaning with warm soapy water and a soft brush will preserve the polish and sparkle, and routine inspection by a qualified jeweler is recommended to ensure secure mounting. For those who prefer documentation, provenance and treatment status can be supported by appropriate gemological reporting, which enhances transparency in the transaction and provides owners with confidence in the attributes of the material.

The Natural Sapphire Company presents this Ceylon blue sapphire as an example of natural gem material where origin, cut, and condition converge to produce a stone of notable character. The combination of intense blue color, mixed brilliant faceting, excellent polish, and an unenhanced state offers a transparent account of quality without reliance on enhancement. For purchasers seeking a sapphire with verifiable origin and a classic, versatile size, this 1.64 carat oval shape example provides a clear and well documented option. The provenance from Sri Lanka situates the stone within a respected tradition of gem production, and the gemological details outlined here describe both how the stone will present visually and what to expect in terms of handling and care, allowing clients to make an informed decision grounded in observable, technical attributes.