2.38 Ct. Blue Cabochon Sapphire from Ceylon (Sri Lanka)

This translucent 2.38 carat round blue sapphire measures 7.01 x 6.99 x 4.68 mm and has been shaped into a classic cabochon cut that emphasizes depth of color and a smooth domed surface. The stone presents an intense blue color intensity with even distribution across the dome, and an excellent polish that gives a satiny, luminous appearance under natural and artificial light. Clarity is graded as slightly included when evaluated at eye level, meaning there are modest natural features visible to a careful unaided eye, but these do not detract from the overall visual impact or structural integrity of the gem. This sapphire has been heat treated, a widely accepted and stable enhancement for corundum, and it is documented as originating from Ceylon, Sri Lanka, a source long celebrated for producing sapphires with vibrant, velvety blue tones. At The Natural Sapphire Company we present this gem with professional photography and careful inspection so you can judge the tone and translucency that make this cabochon particularly appealing for a striking, color forward design.

From a gemological perspective, the attributes of this sapphire explain why it appeals to educated buyers who value both beauty and provenance. The intense color intensity is the primary driver of value in blue sapphires, and with this piece the saturation sits squarely in the realm that collectors and designers prize for its clean, vivid appearance without veering into overly dark tones that can appear black in low light. The cabochon cut enhances the sensation of color rather than sparkle, creating a deep, even field of blue that plays well against both white and yellow precious metals. The clarity grade of slightly included indicates natural internal features consistent with origin, and these inclusions often serve as a fingerprint that distinguishes natural corundum from laboratory alternatives. Measured gemological properties for corundum include a refractive index in the range of 1.762 to 1.770 and a specific gravity near 3.99 to 4.00, properties that contribute to the density and feel of the stone when set into jewelry. The heat treatment applied to this sapphire is stable and standard across the trade, and it is undertaken to enhance color and clarity in a manner that is permanent under normal wearing and cleaning conditions.

Durability is a key consideration for daily wear and here the physical properties of corundum make this cabochon an excellent candidate for everyday jewelry. Sapphire ranks nine on the Mohs hardness scale, second only to diamond, and that hardness gives it outstanding resistance to surface scratching from most household materials. The cabochon profile further improves wearability because the smooth dome reduces the likelihood of catching and chipping that can be a concern with faceted edges. Corundum does not possess cleavage like some other gems, so it is not prone to splitting along a plane, though like all gemstones it can be damaged by a hard impact. Because of these qualities, this 2.38 carat cabochon is well suited for rings, pendants, or bracelets intended for frequent wear. For maximum long term protection, settings such as a bezel or a protective halo are recommended for rings, while pendants can be designed with secure cups and bail mounts that shield the stone from direct knocks. At The Natural Sapphire Company our bench can recommend and execute settings that both showcase the cabochon and provide the practical protection appropriate for daily use.

Care and practical considerations for this heat treated Ceylon sapphire are straightforward and consistent with best practices for corundum jewelry. Routine cleaning with warm water, a mild deterging agent, and a soft brush will keep the surface free of oils and residues that mask its natural depth of color, and polishing by a professional jeweler will restore luster if the metal setting shows wear. Ultrasonic cleaning is often acceptable for well healed, heat treated sapphires, but if inclusions are visible or if you are uncertain about internal features, consult our gemologist before ultrasonic cleaning to avoid stressing any natural fractures. Avoid exposing the gem to harsh chemicals and extreme temperatures during repairs or prolonged manufacture processes, and advise your jeweler of the heat treated status so that soldering and remounting are done with appropriate precautions. For the buyer who values verifiable origin, this stone’s Ceylon provenance adds both historical and market context, as Sri Lankan sapphires are traditionally sought for their bright, lively blues and their broad appeal in the marketplace.

In practical terms this sapphire makes a compelling choice for someone seeking a substantial cabochon that reads boldly on a finger yet retains a comfortable profile for everyday activity. The 2.38 carat weight combined with the near perfect round dimensions creates a balanced visual presence over the hand as shown in our in scale photography, and the combination of intense color and excellent polish ensures that the piece will remain an unmistakable focal point whether set alone or within a complementary design. Educated buyers will recognize the strengths that determine value here, namely color intensity and distribution, natural origin, precise cutting and finish, and durable material properties. The Natural Sapphire Company stands behind the authenticity and description of each gemstone we sell, and our staff can provide additional documentation, bespoke mounting options, and specialist advice on pairing this cabochon with precious metals and settings that will enhance both its aesthetic and practical longevity. If you would like further close up images, custom ring or pendant proposals, or a consultation with one of our gemologists, we are ready to assist you.