1.59 Ct. Blue Sapphire from Ceylon (Sri Lanka)

You are viewing a remarkably transparent blue sapphire offered by The Natural Sapphire Company, a precisely faceted emerald cut weighing 1.59 carat, with dimensions 7.97 x 5.92 x 3.48 mm. This stone presents a vivid color intensity that reads as a deep, pure cornflower blue with electric saturation under daylight and incandescent light. The clarity has been evaluated as eye clean at eye level, meaning that no inclusions are visible without magnification, allowing the gem to present uninterrupted color and depth to the unaided gaze. The polish is excellent, showing crisp facet junctions and a mirror like finish that enhances the stone s ability to reflect and return light. The sapphire is heat treated, a common and widely accepted enhancement that optimizes color and clarity, and it originates from Ceylon Sri Lanka, a historical source renowned for producing some of the world s most desirable blue sapphires.

To understand why this gem is compelling to an educated buyer, it helps to consider the core aspects of gemstone grading and aesthetics. The emerald cut chosen for this sapphire is unusual and refined for colored stones, it creates broad, open planes that emphasize color and transparency rather than scintillation. For sapphire buyers color is paramount, and vivid intensity places this stone in a superior class, where hue purity and saturation combine to produce visual impact without appearing too dark. Clarity graded as eye clean means the evaluator found no inclusions visible at normal viewing distance, a significant advantage for a gem of this tone because internal features can otherwise interrupt the flow of color. The exact measurements 7.97 x 5.92 x 3.48 mm and the 1.59 carat weight make this sapphire versatile for fine jewelry design, suitable for a prominent solitaire setting or as the center of a three stone ring, where the emerald cut will offer a modern, architectural presence.

A responsible buyer will also consider treatments and origin in their valuation, and in this case both attributes enhance desirability while being fully disclosed. Heat treatment is an established practice in the trade, applied to many natural sapphires to stabilize and intensify blue tones, and it is permanent under typical wear conditions. The provenance Ceylon Sri Lanka adds further provenance value, since Ceylon sapphires are prized for their vibrant, lively blues and for a historical supply chain that has yielded many classic gems. Geologically speaking, the story of this sapphire begins millions of years ago, when tectonic forces buried aluminum rich rocks deep below the surface, subjecting them to intense heat and pressure. In pockets where trace elements were present, specifically iron and titanium, tiny crystals of corundum began to form. Over extended geological time frames, hydrothermal fluids and metamorphic recrystallization concentrated these corundum crystals, and subsequent erosion released them into alluvial gravels where they were eventually discovered and recovered. The resulting crystal habit, and in particular the clarity and saturated color of this specimen, reflect a fortunate alignment of geologic conditions and trace element chemistry occurring over vast spans of time.

For the collector or connoisseur assessing value, this sapphire checks multiple boxes that matter in the market, namely natural origin, strong provenience to Ceylon Sri Lanka, vivid color, eye clean clarity, and an excellent cut and polish that maximize visual appeal. The emerald cut presentation makes this gem especially suitable for designs that favor color wash and elegant lines, and the stone s dimensions and weight offer a balance between presence and wearability. At The Natural Sapphire Company we emphasize transparency in both gemology and business practice, and we recommend that buyers request documentation of origin and treatment when appropriate, and consider independent certification for investment grade purchases. For everyday care use warm soapy water and a soft brush for routine cleaning, avoid exposure to harsh chemicals and abrupt thermal shock, and consult a professional jeweler for setting advice to protect the girdle and corners during mounting. This sapphire is more than an object of beauty, it is a preserved fragment of deep time, a naturally occurring crystal shaped by geological forces for millions of years, now ready to be set and worn as a lifelong heirloom.