6.57 Ct. Yellow Sapphire from Ceylon (Sri Lanka)

This transparent, emerald cut yellow sapphire weighs 6.57 carats and presents an elegant rectangular profile with crisp step facets, precise symmetry, and a controlled pavilion depth, the dimensions are 10.67 by 9.33 by 7.35 millimeters, the cut is an emerald style, and the overall presentation is distinctly architectural and refined. The gem exhibits a medium intense yellow color that is vivid without becoming overstated, and the transparency is notable with clarity graded as very slightly included, evaluated at eye level. The polish of this sapphire has been assessed as excellent, yielding clean facet junctions and a bright surface finish that enhances the stone dynamics in hand. Origin is Ceylon, Sri Lanka, and the gem has undergone standard heat treatment to optimize color and clarity, a common and stable enhancement for sapphires. The combination of weight, cut, and origin places this example within a select tier of yellow sapphires that balance presence with wearable proportions.

Color characteristics set this sapphire apart from many yellow sapphire options in the market, both in hue and in the balance of saturation and tone, this stone registers as medium intense, a category that offers a strong, sunny yellow that remains versatile for a range of jewelry designs. Many yellow sapphires at similar sizes tend to be either very light and pastel, lacking sufficient saturation for bold settings, or much more deeply saturated, which can approach amber tones and limit color matching, this 6.57 carat stone sits between those extremes, delivering clarity of color that reads bright in daylight and warm under incandescent light. The medium intense classification also contributes to perceived rarity, because finding stones in this size from Ceylon that combine a clear, pure yellow hue with even saturation across the table and pavilion faces is uncommon, collectors and designers will note the evenness of tone and the way the step cut distributes color without creating zone variation.

Clarity and cut quality are complementary strengths of this sapphire, the very slightly included clarity grade, noted at eye level, means that the stone appears clean to the unaided eye while maintaining natural character under magnification, inclusions are minor and are well positioned so as not to interrupt the broad light windows created by the emerald cut. The emerald cut in a colored stone emphasizes color and clarity rather than sparkle, producing luminous flashes and a hall of mirrors effect within the step facets, this configuration suits a gem with attractive transparency and even color, as is the case here. The excellent polish amplifies the step facet reflections and provides crisp facet terminations, which is important in step cut stones because surface finish directly influences the perceived depth and brilliance. Proportionally the stone’s pavilion depth and girdle thickness accommodate secure bezel or prong settings, and the rectangular outline offers versatility for solitaire designs, three stone arrangements, and custom settings where the geometry of the cut can be echoed in the mounting.

Provenance and treatment are integral to understanding value and long term performance, this sapphire originates from Ceylon, Sri Lanka, a historic source known for producing sapphires with clarity and brightness, and heat treatment has been applied to enhance color uniformity and to reduce minor inclusions, the treatment is stable and widely accepted within the trade, and it has been disclosed as part of the gem’s description. In terms of rarity, the combination of size, cut, color intensity, and Ceylon origin is unusual, larger yellow sapphires from this locality frequently show lighter tones or require stronger saturation to achieve similar presence, therefore a medium intense, transparent stone of 6.57 carats in an emerald cut represents a scarce acquisition opportunity. The Natural Sapphire Company stands behind the material quality and descriptive accuracy, and we document origin, enhancements, and grading observations to assist designers, jewelers, and collectors in making informed choices. Overall this sapphire is well suited to a statement piece where balanced color, step cut elegance, and clear, eye clean appearance are priorities.