0.78 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This sapphire is a beautifully transparent 0.78 carat emerald cut blue sapphire, measuring 6.19 by 4.58 by 2.94 millimeters, with an emerald cut that emphasizes clean lines and a refined step facet structure, an excellent polish, and a clarity grade described as very very slightly included when evaluated at eye level. The stone is untreated, with no enhancement reported, and is of Ceylon origin from Sri Lanka, a source known for producing some of the most sought after blue sapphires in the world. The cut proportions yield a balanced depth that presents the color evenly across the table while preserving a crisp, architectural face up appearance. Because of the emerald cut, the table and pavilion facets work together to deliver a pure, glass like transparency that allows the medium blue color to read consistently across the stone, and the excellent polish ensures that light is returned to the eye with minimal surface diffusion.

Color is one of the most important drivers of value for sapphires, and this gem displays a medium intensity blue that is particularly desirable for an educated buyer who appreciates natural tone and saturation without the heaviness of overly dark stones. Ceylon sapphires are often prized for their clean, lively blue range that can include cornflower, sky blue, and slightly steely tones, and this example sits in the middle of that spectrum where the blue is unmistakable yet still bright and versatile in jewelry. Compared with more common small blue sapphires, which may show either too light a tone or uneven color zoning, this 0.78 carat example is rare in how uniformly the medium blue presents face up, and in how the emerald cut maintains color consistency across the table. For collectors and designers who are looking for a refined blue that will translate well in a variety of settings, from minimalist solitaires to more intricate vintage inspired designs, this color and presentation are unusually well balanced for a stone of this size.

Clarity and treatment state are central to long term value and collector interest, and this sapphire’s clarity grade of very very slightly included at eye level places it above the vast majority of comparable stones in the market. Many sapphires, especially from popular origins, show visible rutile silk or other inclusions that soften color or affect transparency. By contrast this sapphire shows very minor inclusions that do not detract from brilliance or durability when the gem is set and worn. Equally important is the fact that the stone is natural and untreated, meaning there has been no heating or diffusion to alter its color. Untreated Ceylon sapphires in attractive hues and clean appearances are comparatively scarce and command a meaningful premium, because most commercial sapphires undergo some form of treatment to enhance color and clarity. For the buyer who values authenticity, documentation and provenance, a natural, untreated origin like this provides both aesthetic enjoyment and a stronger position for long term appreciation.

At The Natural Sapphire Company we evaluate each stone with an emphasis on accurate disclosure, and this sapphire’s combination of a fine emerald cut, medium blue color, excellent polish, and very very slightly included clarity creates a rare offering for both connoisseurs and those seeking an heirloom quality center stone. The gem’s dimensions and step cut give it a low profile and elegant silhouette that is ideal for rings intended for everyday wear, and the near eye clean appearance ensures a luminous face up presence even at its 0.78 carat weight. For an educated buyer considering the market of small to medium sized blue sapphires, this piece stands out because it combines untreated origin, notable clarity, and a refined cut that maximizes perceived size and color saturation. If you would like additional images, detailed light performance notes, or guidance on mounting styles that complement the emerald cut and medium blue tone, our gemologists at The Natural Sapphire Company are available to assist with tailored recommendations.