34.81 Ct. Blue Sapphire Crystal from Ceylon (Sri Lanka)

One of the most compelling natural sapphires available through The Natural Sapphire Company is this semi translucent 34.81 carat blue sapphire, presented in its original rough crystal form. The stone measures 30.18 x 12.33 x 9.91 mm, and carries a various shape profile that reflects the natural growth geometry of the crystal. The gem has been evaluated with a clarity grade of very slightly included at eye level, and it displays a medium intense color saturation with an excellent polish on accessible crystal faces. Importantly for collectors and connoisseurs, this stone has received no enhancement, making it an untreated example of Ceylon sapphire material, and that untreated status materially affects how the gem should be examined, valued, and ultimately presented in jewellery or a collection.

Color is the primary driver of desirability in blue sapphires, and this specimen’s medium intense blue is characteristic of many fine Sri Lankan, historically called Ceylon, sapphires. Ceylon origin is meaningful to an educated buyer because Sri Lankan deposits often produce stones with lively, bright blues and attractive translucency, rather than the very dark velvety tones seen from some other sources. In this rough crystal the semi translucent nature allows internal color zones and natural growth features to modulate light transmission, producing a subtle play of tone across the length of the crystal. The color is well suited to a variety of cutting strategies, depending on whether the client values maximal carat retention or prefers a more conventional faceted result with optimized color saturation and light return. The current roughly faceted faces have an excellent polish where they have been smoothed, which indicates strong potential for a finished surface if recutting is chosen, while the untouched crystal facets provide a tactile and visual authenticity that appeals to collectors who prize natural crystal form.

Clarity and inclusions are technical factors that inform both aesthetic expectations and market value. The grade of very slightly included at eye level indicates that this sapphire is essentially eye clean to a practiced observer when viewed under normal conditions, while closer inspection reveals modest inclusions that are typical of natural sapphires from primary deposits. These inclusions may include fine mineral crystals, growth lines, or wispy silk like features, and in this rough example they contribute to the stone’s character and geological story. For the cutter or lapidary, such inclusion patterns are critical when choosing orientation and facet design, since they determine potential clarity improvement through material removal or strategic planning to minimize the visual impact of any internal features. From a valuation perspective, the clarity combined with the untreated origin strengthens the stone’s market position, because treated sapphires, particularly those that have been heat treated or subjected to diffusion or fracture filling, are often more numerous and trade at discount relative to comparable untreated material.

As specialists, The Natural Sapphire Company places emphasis on provenance, treatment disclosure, and practical considerations for buyers who are balancing aesthetic preference with long term value. An untreated 34.81 carat sapphire from Ceylon occupies a distinctive niche, whether destined to remain in its rough crystal state for a collector cabinet, or to be transformed into a single large faceted gem or multiple calibrated stones. For a bespoke commission, the dimensions 30.18 x 12.33 x 9.91 mm provide a generous starting block that allows flexibility in cut choice, including elongated cushion, oval, or custom freeform designs that respect the natural crystal outline and maximize yield. From an investment viewpoint, untreated stones with clear origin and good eye level clarity tend to hold and appreciate value more predictably than treated equivalents, particularly when offered by a specialist house that can document origin and provide transparent seller notes. For care, untreated natural sapphire is durable for everyday wear, but should still be protected from hard knocks and strong thermal shock, and routine professional cleaning is recommended to preserve polish and luster. If you require additional information, photographic angles, or a report documenting examination and origin, The Natural Sapphire Company will supply supporting images and advisory guidance on cutting options, mounting strategies, and comparative market context so you can make an informed decision.

If you are contemplating acquisition, this Ceylon rough crystal offers a rare combination of weight, untreated provenance, and presentable clarity, and The Natural Sapphire Company is prepared to assist with next steps. We can provide tailored advice on the most value efficient cutting strategies, referral to experienced master cutters who specialize in Sri Lankan material, and options for bespoke setting design that will showcase the stone’s natural character while reflecting long term value considerations. Whether your priority is to retain maximum carat weight for a statement piece, to produce a matched pair of stones, or to preserve the crystal in its natural form for a collector’s cabinet, our team will help you evaluate trade offs between color, cut, and clarity with the same technical rigor that informs our sourcing and grading practices. Please reach out to discuss the provenance details, to request higher resolution imagery, or to arrange an in person inspection, and our specialists will be pleased to guide you through the options and to facilitate a purchase with full disclosure and professional support.