1.53 Ct. Bluish Green Sapphire from Tanzania

This listing describes a single transparent 1.53 carat bluish green sapphire, presented in a classic cushion shape, with exact dimensions of 6.50 x 5.39 x 4.19 mm. The color is best described as a balanced bluish green, with an intense color intensity that remains lively across a range of lighting conditions, and a transparency that allows for clear light return and depth. The stone weighs 1.53 carat, and the proportions of the girdle, pavilion, and crown have been adjusted during cutting to maximize color saturation and visual presence within the modest table size. The sapphire is natural and untreated, with no enhancement, and it originates from Tanzania, a source known for producing sapphires with varied and attractive green and teal tones.

The gem is fashioned with a mixed brilliant cut, combining step and brilliant elements to enhance both color and scintillation, and the polishing meets an excellent standard, contributing to crisp facet junctions and smooth facet planes. Clarity is graded as very slightly included, evaluated at eye level, indicating only minor inclusions that do not materially affect transparency or the stone s overall visual appeal, and that can add distinguishing character without compromising brilliance. The cushion outline and mixed brilliant facet arrangement deliver a pleasing balance between fire and overall brightness, and the cutter s approach preserves weight while providing stable optical performance in both overhead and angled viewing.

In terms of durability, sapphire is corundum, and it registers a nine on the Mohs hardness scale, placing it just below diamond, which rates a ten. For context, topaz typically rates an eight on the Mohs scale, and quartz a seven, which means sapphire is substantially more resistant to scratches than the majority of common gem materials used in jewelry. This hardness makes the sapphire well suited to daily wear applications including rings, pendants, and bracelets, provided reasonable care is taken, and appropriate settings are employed to protect the girdle and corners. While hardness is a primary indicator of scratch resistance, toughness and the potential for cleavage or chipping are separate considerations, and careful setting selection such as protective bezels or secure prong work is recommended for stones with pointed corners or thinner girdles to minimize the risk of impact damage.

The provenance from Tanzania, combined with the absence of enhancement, makes this sapphire of interest to collectors and those who favor natural color and origin traceability. The Natural Sapphire Company documents the stone s characteristics, including weight, measurements, cut style, clarity assessment, color description, polish, and the no enhancement statement, enabling informed decision making and appropriate certification if required. Routine care can generally be accomplished with warm soapy water and a soft brush to remove surface oils, and professional cleaning or examination is advised before using ultrasonic or steam methods, particularly if the stone is set into a completed mounting. The combination of intense bluish green color, precise mixed brilliant cutting, very slightly included clarity at eye level, excellent polish, no enhancement, and the durable hardness of corundum make this 1.53 carat cushion sapphire a technically refined and visually appealing choice for fine jewelry applications.