4.02 Ct. Greenish Blue Sapphire from Ceylon (Sri Lanka)

This 4.02 carat radiant shape sapphire from The Natural Sapphire Company is a striking example of fine Ceylon gem material, offered with precise measurements of 10.10 by 7.18 by 5.56 millimeters. The stone displays a greenish blue hue with intense color saturation, and it is transparent with a clarity grade described as very slightly included, evaluated at eye level. The radiant cut, with its trimmed corners and mixed facet structure, was selected to optimize both color saturation and light performance, and the excellent polish on the facet planes ensures clean light return and crisp windowing. This sapphire is reported as having no enhancement, a characteristic that significantly increases its rarity and desirability for collectors and connoisseurs who prioritize natural state gemstones, and its origin in Ceylon, Sri Lanka, is consistent with the velvety, lively tones and the dynamic color range that buyers associate with that classic source.

For the educated buyer who evaluates gemstones on cut, clarity, and provenance, this sapphire presents a compelling proposition. The very slightly included clarity grade indicates inclusions are minimal and were assessed at eye level, meaning the stone offers strong visual purity when worn without the need for magnification to appreciate its internal character. The intense color intensity combined with the radiant cut produces a vibrant face up presence, while the dimensions and proportions give the stone an elegant elongated profile, approximately 1.4 to 1 in length to width, which enhances perceived size on the finger or in a pendant. Unenhanced Ceylon sapphires are valued both for their aesthetic qualities and for their investment potential, as untreated stones with documented origin tend to be less available than heat treated material. At The Natural Sapphire Company we emphasize transparent, factual presentation of each gem, and we can provide further gemological documentation and discussion to support a confident purchase.

This sapphire is exceptionally versatile for custom jewelry design, and it can be set in a wide variety of styles to suit personal taste and lifestyle. Its radiant shape lends itself beautifully to classic solitaire rings with four or six corner prongs that protect the cut corners, or to a bezel setting for greater daily wear security while preserving a modern silhouette. For a formally glamorous look, consider a single or double diamond halo to accentuate the intense color and increase visual impact, or choose a three stone composition to add meaningful side gems in matching blue or contrasting white diamonds. The elongated dimensions also favor east west settings for a contemporary feel, and the stone adapts well to pendants, drop earrings, and cufflinks, where the depth and cut will catch light from multiple angles. For those wanting a vintage aesthetic, filigree or milgrain details around the gallery will complement the Ceylon origin and timeless color, while platinum or white gold will emphasize the cooler blue tones, and 18 karat yellow or rose gold will warm the greenish blue towards a teal effect.

When planning a custom setting, consider the balance between exposure and protection, because the excellent polish and precise facet junctions are best preserved with well engineered prong thickness or a carefully fitted bezel, and an open or closed back can be chosen to subtly alter how light interacts with the pavilion and color saturation. This sapphire’s size is substantial enough to be a standout center stone, yet its very slightly included clarity makes it appropriate for settings that allow light to penetrate, showcasing its natural character rather than concealing it entirely. At The Natural Sapphire Company our design team can create detailed design proposals including CAD renderings, metal and accent gemstone recommendations, and secure setting approaches to suit everyday wear or heirloom presentation. Please contact our specialists to discuss the exact customization you envision, and we will guide you through options that maximize the beauty, durability, and long term value of this fine Ceylon sapphire.