1.00 Ct. Blue Sapphire from Ceylon (Sri Lanka)

One beautiful transparent 1.00 carat round shape blue sapphire is presented with precise dimensions of 6.17 x 6.16 x 3.47 mm, faceted in a mixed brilliant cut and finished with an excellent polish, a profile that maximizes brilliance and light return while maintaining a classic round silhouette. The gem displays an intense color intensity, a vivid and saturated blue that remains consistent across the table and crown, producing notable depth without appearing overly dark. Clarity is graded slightly included evaluated at eye level, meaning the stone contains minor natural inclusions that are not readily apparent to the naked eye and that subtly contribute to the gem character without detracting from overall visual appeal. This sapphire is heat treated, a commonly accepted enhancement that improves color uniformity and clarity, and its origin is Ceylon Sri Lanka, a locality renowned for producing sapphires with lively cornflower to deep royal blue tones, a heritage reflected in the balance of hue and saturation evident in this example. The Natural Sapphire Company presents this stone as a well proportioned, visually appealing candidate for fine jewelry, particularly where a single, color rich center gem is desired.

From a gemological perspective the physical and optical attributes of this sapphire make it suitable for regular wear, a point reinforced by its hardness on the Mohs scale. Sapphire, a variety of corundum, ranks 9 on the Mohs scale of mineral hardness, placing it among the hardest natural gemstones available and second only to diamond which ranks 10. This hardness means the sapphire is significantly more resistant to scratching than common jewelry materials such as quartz, which ranks 7, and topaz, which ranks 8, and it is also harder than many other attractive gem options that are more susceptible to surface abrasion. The durability imparted by a Mohs level of 9 supports use in rings, bracelets, pendants, and earrings, subject to sensible design choices and secure setting methods that protect the stone from hard knocks or sharp impacts. Heat treatment is stable under normal wearing conditions, and the excellent polish further enhances resistance to surface wear by reducing microabrasion, making this sapphire a practical choice for daily use as well as special occasion pieces.

Practical considerations for setting and design emphasize both aesthetics and protection, with this 6.17 x 6.16 x 3.47 mm round mixed brilliant sapphire offering flexibility that suits a variety of mounting styles. A well executed four or six prong mounting allows more light to enter the pavilion, showcasing brilliance and color, while a low bezel setting provides additional protection for active wearers who prefer extra security around the girdle. Given the stone weight of 1.00 carat and its eye visible clarity grade, fine settings that allow light to interact with the pavilion facets without heavy bezel overhang will best display the gem character. The combination of intense color, mixed brilliant facet arrangement, and excellent polish creates a stone that photographs attractively and appears lively on the finger, as illustrated in proportion reference images. For clients seeking certification or further documentation, The Natural Sapphire Company can provide detailed reports and recommendations for mounting and care, ensuring the gem is matched to the intended design and lifestyle of the wearer. Routine care involves standard ultrasonics only if advised by a professional and avoidance of harsh chemicals, with periodic professional inspections recommended to confirm secure settings and to preserve the long term appearance and integrity of this finely finished Ceylon sapphire.