0.74 Ct. Purplish Blue Cobalt Spinel from Ceylon (Sri Lanka)

This listing describes a rare and visually striking gemstone offered by The Natural Gemstone Company, a transparent bluish violet, purplish blue cobalt spinel, weighing 0.74 carat, presented in a cushion shape that reads as elegant and versatile in jewellery. The gem measures 5.52 by 4.68 by 3.41 millimeters, and is faceted with a mixed brilliant cut, a choice that balances scintillation and fire while preserving a strong face up presence. The clarity has been evaluated at eye level as very slightly included, a grade that speaks to the stone being essentially clean to most wearers while retaining natural character. The color has been graded as intense in intensity, and the polish is excellent, delivering crisp facet junctions and a smooth surface that maximizes light return. The origin of this cobalt spinel is Ceylon, Sri Lanka, a locality with a long established reputation for producing high quality spinel in a range of attractive colors. The gem is certified, and the enhancement status is no enhancement, a critical detail for connoisseurs who insist on untreated material.

From a grading and gemological perspective this stone offers attributes that matter to educated buyers, collectors, and jewellers, who evaluate gemstones on color, clarity, cut, carat, and origin. The very slightly included clarity grade evaluated at eye level indicates that any internal features are minimal and do not interfere with the gem's transparency or brilliance when examined without magnification. The mixed brilliant cut is specifically designed to combine the reflective advantages of a brilliant facet arrangement with the elegant outline of a cushion shape, producing strong scintillation across the table and controlled dispersion from the pavilion facets. Excellent polish enhances durability against surface wear and helps maintain the stone's initial appearance over time, because a finely polished surface disperses light cleanly and resists dulling. The dimensions align with the stated weight of 0.74 carat, and the gem is substantial enough to be set as a refined centre stone in a ring, pendant, or bespoke piece.

Color is the defining feature of this gemstone, and the bluish violet to purplish blue hue provided by cobalt trace elements is among the most sought after within the spinel species. Cobalt spinel is prized for its saturated, vivid tones that can stand alongside the finest blue and violet gems without reliance on enhancement, and the intense color intensity recorded for this piece confirms a rich and lively face up appearance. Origin matters, and Ceylon is known for producing spinel with clean color and attractive saturation, which adds provenance value for collectors who prefer stones with a documented geological source. The fact that this gem is untreated, with no enhancement, materially increases its appeal to buyers seeking natural color and structure, because untreated cobalt spinel is less common than treated or synthetically modified alternatives. The combination of transparency, intense color, and careful cutting yields a gem that displays both depth and sparkle, characteristics that educated buyers recognize as indicators of lasting desirability.

Beyond technical merits, the natural beauty of this cobalt spinel will continue to captivate for years, because the attributes that create visual appeal are structural and stable. Spinel ranks highly for daily wearability, and the hardness and toughness of the material mean that the color, cut, and polish will resist common wear and maintain brilliance with normal care. The mixed brilliant cut and excellent polish ensure that light performance will remain striking as the gem is set and worn, and the very slightly included clarity grade balanced with intense color produces a lively internal play without obvious distractions. For those commissioning bespoke settings, the cushion outline and substantial color depth allow creative versatility, from classic halo designs that emphasize fire and contrast, to minimalist settings that showcase the pure color and transparency. The Natural Gemstone Company stands behind the stone, providing certification and provenance information, and offering guidance on care, setting options, and secure purchase. For collectors and jewellery connoisseurs who value untreated materials, established origin, and a well executed cut, this 0.74 carat bluish violet purplish blue cobalt spinel represents an investment in beauty that will continue to reward the eye and the intellect over time.