3.79 Ct. Blue Rough Sapphire Crystal from Ceylon (Sri Lanka)

This listing describes a single semi transparent blue sapphire weighing 3.79 carats, supplied by The Natural Sapphire Company. The stone presents in a various shape with measured dimensions of 14.55 by 5.72 by 4.96 millimeters, and it retains a rough crystal cut that highlights its natural form. The sapphire is classified as eye clean when examined at standard viewing distance, and it exhibits an intense color intensity together with an excellent polish that accentuates its surface luster. Origin is Ceylon Sri Lanka, and the stone has received no enhancement, preserving its natural formation and optical properties.

Visually the sapphire displays a clear, cool blue hue with depth and saturation that register as intense under both daylight and controlled lighting. Semi transparency permits light to transmit through the body of the stone while still showing internal character, and the rough crystal cut provides an organic silhouette that is distinct from conventional faceted goods. Internal features are present but do not affect clarity at the level of unaided eye observation, which supports the eye clean designation. The excellent polish on the exterior planes enhances light reflection and surface smoothness, offering a refined tactile quality despite the rough crystal profile. The combination of semi transparency and intense color produces a strong presence when set, and the natural inclusions contribute to provenance and authenticity without detracting from visual appeal.

From a practical standpoint the sapphire is versatile for bespoke jewellery applications, including styles that showcase the stone as a focal element or designs that incorporate it into mixed gemstone compositions. Its 3.79 carat weight and elongated proportions suit vertical settings or asymmetrical motifs, and the excellent polish reduces the need for further finishing if the stone is used as presented. Because the material has no enhancement, its value derives from natural color and clarity, and it is suitable for clients who prioritize untreated gemstones and documented origin. Care recommendations are consistent with corundum standards, avoid abrasive cleaners and harsh chemicals, clean with warm soapy water and a soft brush as needed, and inspect periodically for secure mounting if set in metal. The Natural Sapphire Company can provide additional images, viewing angles, or independent lab reporting when requested, and we can discuss options for mounting or custom cutting while preserving the stone characteristics that define its Ceylon origin.