5.50 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 5.50 carat cushion shape blue sapphire from Ceylon Sri Lanka embodies the qualities that discerning collectors and connoisseurs prize, transparency, precise dimensions, and a brilliant color that reads vivid under varied lighting. The stone measures 10.53 x 9.50 x 5.96 mm, and its faceted, mixed brilliant cutting style produces exceptional light performance. Clarity is graded as eye clean when viewed at normal eye level, an important merit for a sapphire of this size, and the polish is excellent, which further enhances surface luster and optical contrast. This sapphire has undergone standard heat treatment, a stable and widely accepted enhancement that intensifies the vivid blue tone and refines clarity while preserving the natural origin and structural integrity of the corundum. At The Natural Sapphire Company we source and present sapphires with attention to both gemological parameters and aesthetic appeal, and this stone is a prime example of that approach.

The cutting style is a critical contributor to the stone being a centerpiece in any collection, and this cushion sapphire has been cut to optimize both color saturation and brilliance. The mixed brilliant approach uses a combination of brilliant facets on the crown and modified step and brilliant elements on the pavilion, allowing for strong light return and a lively mix of sparkle and colored flash. With a measured depth of 5.96 mm and an average diameter near 10.02 mm the depth ratio is approximately 59.5 percent, a proportion that supports balanced face up color without sacrificing scintillation or windowing. The result is a gem that exhibits even color distribution, controlled pleochroic behavior that favors saturated blue hue, and pronounced facet contrast that reads as lively blue flashes interspersed with deeper blue zones. For the educated buyer, these attributes indicate a well considered cutting strategy that preserves weight while delivering optimal visual performance, making the stone rare and desirable at this carat weight and color intensity.

From an investment and design perspective this sapphire offers compelling value. Ceylon Sri Lanka sapphires are historically sought after for their vibrant, clear blues that lean toward medium to vivid saturation, and provenance from this classic source adds market recognition and desirability. The combination of eye clean clarity and vivid color at 5.50 carats is uncommon, which supports both aesthetic and long term market appeal. Because the stone is heat treated rather than subjected to more invasive enhancements, the color and clarity are stable under normal wear and cleaning, and the excellent polish reduces the likelihood of surface wear in a well made mounting. For settings, the cushion outline and strong faceting make the sapphire particularly suited to a solitaire or halo design, and it pairs beautifully with platinum or yellow gold depending on whether the buyer prefers a cool modern presentation or a warmer, contrast rich setting. Practical care is straightforward, given corundum hardness, and routine cleaning with warm soapy water and a soft brush preserves brilliance, while professional inspection prior to any resizing or setting is recommended.

At The Natural Sapphire Company we present each sapphire with clear specification of weight, dimensions, cut style, clarity assessment, enhancement disclosure, and origin to support informed decisions. This 5.50 carat cushion sapphire stands out because of its balanced proportions, mixed brilliant faceting that maximizes light return, vivid Ceylon blue that commands attention, and eye clean clarity that allows the color to speak unhindered. For collectors and clients seeking a signature piece that functions as both a display of refined taste and a durable wearable gem, this sapphire is an exceptional candidate, and we welcome inquiries about independent gemological reports, custom mounting options, and secure delivery arrangements.