1.60 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This is a transparent 1.60 carat blue sapphire, presented in a classical emerald cut, with precise dimensions of 7.12 x 5.73 x 3.84 mm, originating from Ceylon Sri Lanka. The gem displays a medium intense blue color intensity that is evenly distributed across the step facets of the emerald cut, a facet style that emphasizes color and clarity through broad, flat planes. The polish on this stone is excellent, producing crisp facet junctions and lively facet reflections that enhance the perception of depth and saturation. This sapphire has been heat treated, a standard and widely accepted enhancement in the trade, applied to improve tone and clarity while retaining the natural character of the material. At The Natural Sapphire Company we document these characteristics precisely, so buyers receive a clear technical profile alongside the aesthetic impression.

Under careful examination the inclusion pattern of this sapphire provides an unmistakable signature, a fingerprint that ties the gem to its natural formation environment. The stone contains fine silk like rutile needles that run in parallel bundles aligned with the hexagonal crystal growth direction, these needles impart a subtle velvety texture to certain viewing angles and slightly diffuse light to create a softer, more crystalline blue. Alongside the silk there are slender growth tube features and narrow liquid or two phase inclusions that appear as tiny elongated cavities, occasionally accompanied by minute reflective platelets and healed fissure planes. These internal features remain delicate and well confined, consistent with a clarity grade of very very slightly included, evaluated at eye level, which means that inclusions are minimal and do not detract from the gem when set, yet they are diagnostic under magnification. The heat treatment applied to the stone has polished and stabilized some of these inclusions, reducing any veil effect while enhancing color saturation, however the remaining silk and growth signatures still carry the natural story of pressure temperature and chemical environment during the sapphire crystallization.

For the educated buyer these inclusion characteristics are more than imperfections, they are provenance and personality, they allow experienced gemologists and connoisseurs to read the gem as a natural product of Ceylon Sri Lanka. The medium intense blue is a highly desirable color family for collectors who prize brightness and lively tone over overly dark saturation, and the emerald cut here is a particularly thoughtful choice because it balances color concentration with clarity, offering clean color planes and a refined architectural profile ideal for classic and contemporary settings alike. The 1.60 carat weight situates this piece in a size range that is meaningful for engagement pieces and also appealing for collectors seeking clean, well proportioned stones. The very very slightly included clarity, excellent polish, documented heat treatment and confirmed origin from Ceylon Sri Lanka together make this sapphire a reliable purchase, combining aesthetic appeal with transparent disclosure.

At The Natural Sapphire Company we emphasize full disclosure, laboratory grade evaluation and careful photographic representation so that the buyer understands both the visible beauty and the internal structure that gives the sapphire its personality. If you are selecting a mounting to showcase this emerald cut sapphire, settings that allow light to pass through the pavilion will best display the velvety silk texture and medium intense blue, while bezel or half bezel styles can protect the crisp corners of the emerald cut without concealing the stone. For collectors interested in the geological story, the observed rutile silk and growth features provide a direct connection to the gem forming environment in Ceylon Sri Lanka, while the applied heat treatment is a known trade practice that preserves stability and enhances color. This combination of natural internal signatures, elegant emerald cut proportions, and documented provenance positions this 1.60 carat sapphire as a thoughtful and defensible acquisition for an educated buyer.