1.59 Ct. Cobalt Spinel from Ceylon (Sri Lanka)

If you are searching for a single stone that can end a long pursuit of rarity, beauty, and uncompromised quality, this cobalt spinel is precisely the answer you have been waiting for. We understand that whether you are selecting the perfect engagement ring, securing a showpiece for a collector s cabinet, or commissioning a one of a kind design, you need an exceptional gem that combines presence, color, and clarity in harmonious balance. This transparent 1.59 carat round cobalt spinel from Ceylon Sri Lanka meets those needs at every level, measuring 6.51 by 6.48 by 4.57 millimeters with a mixed brilliant cut that has been executed to maximize brilliance and color return. Evaluated at eye level and graded as very very slightly included, this gem reads clean to the eye, and its intense color intensity and excellent polish allow each facet to sing when light moves across the stone. The lack of any enhancement means you are holding a naturally vivid cobalt blue gem, not a treated lookalike, and that authenticity is central to the value and enduring appeal that serious buyers demand.

Rarity is what elevates this spinel above the ordinary, and the story begins with color. Cobalt spinel is a distinct and uncommon variety characterized by a saturated pure blue that sits apart from the more familiar blue of corundum. Finding that pure cobalt blue at a size above one and a half carats is exceptionally rare, and finding it in a well cut round that displays such even saturation and intense color intensity is even rarer. Most blue spinels of this hue occur in smaller sizes or with uneven tone that diminishes their versatility for fine jewelry. This piece however offers a rare marriage of scale and color, a 1.59 carat weight that gives real presence in a ring head or pendant, combined with the depth of blue collectors prize. The mixed brilliant cut balances scintillation with face up color, allowing this stone to look lively under daylight and richly saturated under interior lighting. For customers who want a statement gem that is not a common find in the market, this cobalt spinel answers that need with authority, bringing a level of exclusivity and visual drama that completes a collection and elevates bespoke jewelry designs.

At The Natural Gemstone Company we know that provenance and craftsmanship matter as much as the stone itself, and this cobalt spinel delivers on both counts. Originating from the storied gem fields of Ceylon Sri Lanka, this gem carries the geological pedigree and the historical association with fine colored stones that sophisticated buyers appreciate. The clarity grade of very very slightly included means settings can be designed to showcase the gem with minimal distraction from inclusions, allowing the cutter s skill and the stone s innate color to be the focal point. We recommend settings that allow light to enter freely, such as classic four or six prong mounts in platinum or 18 karat white gold to highlight the pure blue, or warm yellow gold to create a vintage juxtaposition that accentuates the cobalt tone. Because the stone is unenhanced, it will age naturally without worrying about treatments altering its appearance over time. If your quest has been for a rare blue gem that combines wearable size, striking color, and natural authenticity, this 1.59 carat round cobalt spinel from Ceylon is the perfect solution. Allow The Natural Gemstone Company to guide you through design and setting options, and rest assured that with this stone your search truly ends with something unforgettable.