1.58 Ct. Bluish Green Sapphire from Australia

This 1.58 carat asscher octagon sapphire presents a refined bluish green hue with intense color saturation, offering a versatile tone that reads green in warm light and blue in cooler conditions. The gem measures 6.08 by 6.00 by 5.36 millimeters, and its painstaking asscher cut emphasizes symmetry and step faceting, yielding a restrained hall of mirrors effect that enhances color and creates controlled flashes of light. Clarity is described as very very slightly included, evaluated at eye level, which indicates minimal internal characteristics that do not distract from visual performance. The polish is excellent, contributing to crisp facet junctions and a smooth table surface that maximizes optical return. Heat treatment was applied to improve color uniformity and stability, a common and accepted enhancement, and the sapphire is documented as originating from Australia, reflecting a notable source for distinct teal and bluish green material. The Natural Sapphire Company offers this stone with full disclosure of origin and treatment, presented in measured specifications to support informed selection.

From a durability perspective, this sapphire is well suited to daily wear, owing to the inherent properties of corundum, which ranks 9 on the Mohs hardness scale, second only to diamond among commonly used gemstones. This exceptional hardness provides strong resistance to scratching from household materials and incidental contact, preserving surface finish and polish through routine activity. The stone also exhibits robust toughness for a gem of this class, and the very very slightly included clarity means there are no significant internal weaknesses that would materially compromise structural integrity under normal wear. The asscher octagon geometry features distinct corners and defined pavilion facets, and while corundum itself is resistant to abrasion, settings that protect the corners will enhance long term durability, particularly for ring applications. Heat treatment applied to this sapphire is stable under typical environmental conditions and common cleaning methods, and the excellent polish further reduces the likelihood of microabrasion during everyday use.

Practical care guidance and setting considerations will support long term performance and maintain visual appeal. For high wear applications such as engagement rings and everyday pendants, a bezel or protective prong setting that secures the corners of the asscher octagon is recommended, this approach reduces the exposure of facet junctions to lateral impact without obscuring the stones step pattern. For those preferring an open setting, regularly scheduled checks of prong tightness and occasional professional inspections will help prevent accidental loosening. Cleaning with warm water, mild detergent, and a soft brush is effective, and because the sapphire has been heat treated, standard professional ultrasonic and steam cleaning are generally appropriate, subject to confirmation by a qualified jeweler for each individual mounting. With careful setting selection and routine maintenance, this Australian bluish green sapphire will retain its intense color and polished surface for many years, making it an excellent candidate for pieces intended for daily wear. The Natural Sapphire Company provides detailed documentation for this gem and can advise on mounting options and care procedures that align with long term durability and aesthetic goals.