1.78 Ct. Blue Sapphire from Ceylon (Sri Lanka)

One transparent 1.78 carat oval blue sapphire, measuring 7.87 by 6.37 by 4.32 mm, presents a refined balance of size and presence for fine jewelry, supplied by The Natural Sapphire Company. The stone is faceted with a mixed brilliant cut, which combines precise pavilion faceting with a well proportioned crown to maximize light return and scintillation. Clarity is graded as very very slightly included when evaluated at eye level, indicating inclusions that are minimal and do not detract from the overall transparency or visual appeal. The color is described as intense in saturation, offering a deep vibrant blue that remains lively under varied lighting conditions, and the polish is excellent, delivering crisp facet junctions and a smooth, reflective surface. Enhancement by heat treatment has been applied, a standard and stable procedure for Ceylon Sri Lanka sapphires, and the origin of the material is Ceylon Sri Lanka, noted for producing sapphires with appealing vibrancy and classic blue tones.

The inherent physical properties of corundum make this sapphire particularly well suited to daily wear, with a Mohs hardness of 9 that provides robust resistance to abrasion and surface scratching, second only to diamond among gem materials. In practical terms, this hardness means the stone will withstand normal contact and wear when set in rings, pendants, or bracelets, while the mixed brilliant cut and very very slightly included clarity contribute to durability by avoiding excessive fragility. For optimal long term performance, consider secure mounting styles such as bezel settings or well fabricated prongs that protect the girdle and pavilion from impact, and schedule routine inspections to ensure the setting remains sound. Routine care is straightforward, warm soapy water and a soft brush safely maintain the stone appearance, and professional ultrasonic cleaning may be appropriate on a case by case basis after assessment of the setting and any inclusions. The Natural Sapphire Company can advise on mounting options and care guidance to preserve condition and brilliance for everyday wear, ensuring the sapphire performs reliably as a durable and enduring center stone.