1.64 Ct. Blue Spinel from Tanzania

This 1.64 carat oval blue spinel presents a meticulously measured profile, with exact dimensions of 7.28 x 5.90 x 5.41 millimeters, and a faceted cutting style executed to exacting standards. The mixed brilliant cut employed in this stone unites a brilliant facet schema on the crown with a complementary pavilion architecture that maximizes return of light while maintaining an elegant oval silhouette. The oval outline has been proportioned to retain visual presence on the finger or in a pendant, while the depth of 5.41 millimeters supports well balanced light performance, minimizing windowing while preserving face up size. Clarity is graded slightly included at eye level, which in practice means minor internal features that do not materially impair brilliancy, and which can add character under magnification without detracting from the gem when set. The polish is excellent, with facet junctions executed crisply, producing sharp facet lines and uninterrupted lustre across the crown facets. This combination of precise dimensions, considered proportions, and skilled finishing results in a gem that reads as both technically accomplished and visually appealing, ready to be showcased in a refined setting.

Color is a defining attribute of this spinel, described as medium color intensity in a pure blue hue that is characteristic of select Tanzanian material. The medium intensity places the stone in an ideal zone for both saturation and versatility, strong enough to display color in varied lighting environments, yet restrained enough to maintain subtlety and adaptability across metal colors and design motifs. The mixed brilliant cut enhances color distribution, the brilliant crown facets dispersing light across the table and upper facets, creating scintillation that animates the blue, while the pavilion design ensures depth of tone without darkening the table plane. Because spinel is an isotropic gem, the blue remains consistent across viewing angles, and the slightly included clarity grade allows small internal features to act as points of light refraction under angled light, adding a nuanced internal shimmer. With no enhancement applied, the color and clarity are wholly natural, offering a transparency of origin that informed collectors value, and guaranteeing that the hue you appreciate today is the hue you will continue to enjoy without concerns over unstable treatments.

From a durability and longevity standpoint, this Tanzanian spinel is an excellent choice for repeated wear, owing to spinel s inherent toughness and resistance to common household conditions. Its excellent polish and the absence of enhancements contribute to long term stability, as there are no coatings or fillings that might degrade with exposure to cleaning agents or heat from routine jewelry repair. The mixed brilliant faceting strengthens the gem s ability to hide minor surface wear over time, because the interplay of repeated small facets disperses micro abrasions in service, preserving overall brilliance. When set with secure prongs or a bezel that protects the girdle and culet areas, the gem will maintain its structural integrity and optical performance for decades. Routine care involves gentle cleaning in warm soapy water and periodic professional inspection, which will keep the polish at its best and ensure that the slightly included features remain stable, rather than developing into surface reaching fissures. Collectors and connoisseurs will appreciate that the natural beauty of the piece is not dependent on artificial intervention, and that its visual allure will continue to captivate as the gem integrates into an heirloom quality setting.

At The Natural Gemstone Company we take care to select specimens that demonstrate both geologic origin and lapidary excellence, and this 1.64 carat oval blue spinel from Tanzania exemplifies that standard. Our lapidary partners have realized the mixed brilliant design with consistency, achieving symmetrical facet arrays and excellent polish that permit the gem to perform optimally under varied lighting conditions. For designers and buyers who prioritize technical attributes, the precise measurements and proportioned depth guarantee predictable behavior during mounting, and the medium color intensity allows flexibility in pairing with white gold, platinum, or yellow gold, each metal creating a distinct presentation without compromising the stone s inherent color balance. This spinel will anchor contemporary minimalist settings as effectively as vintage inspired designs, owing to its classic oval geometry and lively faceting scheme. We offer provenance documentation and will provide calibrated photographs and viewing recommendations to assist in design decisions, ensuring that what you select today will integrate seamlessly into your collection and continue to draw admiration in years to come.

In summary this 1.64 carat, 7.28 x 5.90 x 5.41 millimeter, faceted oval blue spinel combines scientifically considered cutting technique, natural medium intensity color, slightly included clarity at eye level, and an excellent polish to deliver a gem that is both technically refined and emotionally resonant. Its mixed brilliant cut maximizes scintillation and color distribution while maintaining structural soundness, its unenhanced Tanzanian origin speaks to authenticity and long term stability, and its dimensions and proportions are suited to a broad range of high end jewelry applications. When mounted with attention to guard the girdle and culet, and cared for with routine gentle maintenance, the natural beauty of this spinel will continue to captivate, reflecting light and hue with the same vivacity through seasons, styles, and generations. Trust The Natural Gemstone Company to provide this quality, and to assist you in translating the stone s technical virtues into a finished piece that will be cherished over a lifetime.