0.89 Ct. Bi Color / Parti Sapphire from Ceylon (Sri Lanka)

This listing describes a single, transparent pear shape bi color parti sapphire weighing 0.89 carat, with precise dimensions of 6.81 by 4.97 by 3.40 millimeters. The stone is natural, originating from Ceylon, Sri Lanka, and has not undergone any enhancement. The cutting style is faceted, executed as a mixed brilliant cut that preserves weight while optimizing light return. Clarity is graded very slightly included, evaluated at eye level. Color intensity is classified as medium, presenting a distinct bi color parti effect across the pavilion and crown, and the finish is described as excellent polish. This sapphire is offered and authenticated by The Natural Sapphire Company, with all details assessed by trained gemological staff.

Optically, the mixed brilliant faceting produces a balance between scintillation and broad flash, which is well suited to the pear shape. The stone is transparent and the mixed cut allows for a bright face up appearance while maintaining the integrity of the parti color distribution. The length to width ratio is approximately 1.37 to 1, a proportion that typically reads as a classic pear shape when set in jewelry. The depth measures 3.40 millimeters, which corresponds to an overall depth of approximately 57.8 percent relative to the average of length and width. These proportions influence both the visual spread of the gem and its perceived color concentration, so the medium color intensity is apparent without overpowering the clarity and transparency of the material.

From a durability standpoint, this sapphire is composed of corundum, which registers at nine on the Mohs scale of mineral hardness. This places it directly below diamond, which is ten on the same scale, and notably above commonly used gemstones such as topaz and quartz. The high hardness of corundum confers strong resistance to surface scratching in normal wear, making sapphires an appropriate choice for everyday jewelry such as rings and bracelets. Corundum lacks true cleavage planes, which reduces the likelihood of clean cleavage fractures, though it can still chip or fracture if subjected to sharp, localised impact. The very slightly included clarity grade reported at eye level indicates minor inclusions that do not materially compromise structural integrity, and the excellent polish further minimizes surface imperfections that can concentrate wear.

Practical considerations for setting and care are guided by the stone geometry and its natural character. The tapered point of the pear shape benefits from protective setting choices, for example a secure prong or partial bezel at the tip to reduce exposure to blunt impact. Because the sapphire has not been treated, standard gem care practices apply, including routine cleaning with warm water, mild detergent, and a soft brush, and professional inspection of settings at regular intervals. Steam and ultrasonic cleaners are generally safe for corundum that is not filled or fracture treated, however, caution is advised when inclusions are present, and testing or consultation with a qualified jeweller is recommended before subjecting any stone to aggressive cleaning. The Natural Sapphire Company documents this gem as a natural, unenhanced Ceylon sapphire, and our description reflects measured dimensions, cut type, clarity, color intensity, and finish as determined by our gemological assessment.