3.40 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This C.Dunaigre certified Blue sapphire from The Natural Sapphire Company is a superb example of classic Ceylon origin, weighing 3.40 carat in a graceful cushion shape, with exact dimensions of 10.17 x 7.88 x 4.75 mm. The stone has been fashioned with a mixed brilliant cut, combining the scintillation of a brilliant style with the broad color display of a step influenced pavilion, and it presents a vivid color intensity with an excellent polish. Clarity is graded as very slightly included, evaluated at eye level, which means the inclusions are minimal and do not detract from the stone when examined without magnification. Enhancement is limited to heat treatment, the most commonly accepted and stable method used to improve color and clarity in natural sapphires, and the Ceylon provenance speaks to a long history of producing fine, highly saturated blue material that is prized by collectors and connoisseurs alike.

Color is the paramount attribute for any sapphire, and this blue sapphire delivers a vivid, clean blue that sits in the desirable spectrum between velvety cornflower blue and pure true blue. Ceylon sapphires are known for their lively, bright character, and this example shows an open, luminous saturation that reveals itself across the table and pavilion. When compared with historically famous sapphires, it differs in a useful way, offering more transparent clarity and brightness than many Kashmir stones, which are celebrated for their velvety tone but often show more silk like inclusions. It also offers a more saturated and transparent expression than many of the larger Star of India type corundums, which are remarkable for size and phenomenon but not for the combination of clarity and vivid color that a collector seeks. The heat treatment has been carried out in a controlled manner to enhance color without compromising the natural character, yielding a stable, permanent improvement that is fully disclosed and consistent with market practice.

Clarity and cut work together in this sapphire to maximize visual appeal and practical wearability, the very slightly included clarity grade means the gem is eye clean in typical viewing conditions, and the inclusions that are present often act as fingerprints of origin rather than detractors. The mixed brilliant cut offers lively return of light, creating scintillation that complements the stone's saturated blue, while the cushion outline remains a classic and versatile choice for many settings. The 10.17 x 7.88 x 4.75 mm dimensions translate into an impressive face up presence for a 3.40 carat weight, and the excellent polish ensures that light interacts with the facets cleanly, enhancing both brilliance and color delivery. From a practical standpoint the sapphire is robust enough for daily wear, being a corundum with inherent hardness that resists abrasion, and the heat treatment performed reduces internal strain and improves clarity without introducing instability.

For the educated buyer this sapphire presents clear value, it combines certified provenance, a recognized laboratory endorsement in the C.Dunaigre certification, and the desirable combination of vivid color, eye clean clarity, and an expertly executed mixed brilliant cushion cut. The Ceylon origin provides a narrative of classic sources that have produced many celebrated gemstones in history, and yet this stone stands apart by offering a transparent, vivid blue in a desirable size that is ready for investment quality jewellery or a refined collector acquisition. The Natural Sapphire Company offers this gem with full disclosure of origin and treatment, allowing buyers to make an informed decision, and our gemological team can advise on optimal settings to showcase the stone, whether a simple solitaire to emphasize color and clarity, or a more elaborate mount that highlights the cushion outline. In short this 3.40 carat Ceylon sapphire brings together the best attributes that informed buyers seek, provenance, polish, color and clarity, making it a rare and rewarding choice.