3.66 Ct. Greyish Blue Star Sapphire from Ceylon (Sri Lanka)

This translucent 3.66 carat round greyish blue star sapphire measures 7.51 by 7.41 by 5.86 mm, and is fashioned as a cabochon to maximize asterism and light return. The cabochon cutting style and excellent polish produce a distinct star effect under direct light, while the light color intensity gives a soft, versatile tone suitable for a range of settings. Clarity is graded as slightly included when evaluated at eye level, with internal features that contribute to the classic star phenomenon without detracting from the overall appearance. This stone is natural and untreated, with no enhancement reported, and its documented origin is Ceylon Sri Lanka. The Natural Sapphire Company provides this gem with full disclosure of its characteristics and photographic reference to its visual qualities.

As a corundum species, this star sapphire has a Mohs hardness of 9, which confers strong resistance to scratching and abrasion and makes it an excellent candidate for daily wear in rings, pendants, and other frequently worn jewelry. The rounded cabochon profile distributes contact forces more evenly than faceted edges, reducing the likelihood of chipping along the girdle, and the excellent polish helps maintain surface luster through normal use. Slight inclusions visible at eye level typically do not compromise structural integrity, however like all sapphires this material can suffer damage from severe impact or sharp blows. For everyday wear we recommend secure protective settings such as a full or partial bezel, and routine inspection of the mounting to ensure the stone remains well seated. Cleaning is straightforward, using warm water, a mild soap, and a soft brush, followed by gentle drying with a soft cloth. Avoid exposure to strong acids, prolonged high heat, and harsh household chemicals, and remove the piece during heavy manual activities to further reduce risk. The Natural Sapphire Company can advise on optimal mounting and care practices to preserve the gem s appearance and durability for daily use.