4.65 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This cushion shaped blue sapphire began its life in the ancient alluvial gravels of Ceylon, where centuries of monsoon wind and water revealed pockets of corundum to patient miners. From the moment the rough crystal was pried from the earth a story began, a slow forming of color and depth under heat and pressure that would one day become a gem of rare presence. At The Natural Sapphire Company we follow that story closely, honoring the path from mine to master cutter as an act of stewardship, not just commerce. This particular stone weighs 4.65 carats, with dimensions measuring 8.93 by 8.04 by 6.79 millimeters, a transparent cushion form that retains the organic silhouette of its origin while embracing the precision of modern gem cutting. Evaluated at eye level it presents a clarity grade of very very slightly included, an attribute that allows the vivid color intensity to sing without distraction, while a careful, stable heat treatment has been applied to refine tone and saturation in a way that is both traditional and enduring. The mixed brilliant cut and excellent polish are the final hands on the gem, sculpting light into scintillation and giving the sapphire an inner life that changes as it moves, returning and refracting the cobalt and royal blues that have long been prized in Ceylonese stones.

The journey from rough to jewel is where the potential for custom design truly reveals itself, because the cushion shape and the balanced proportions of this stone create unparalleled flexibility for bespoke jewelry. The cushion outline offers soft rounded corners and a generous face up area, making the 4.65 carat weight read larger to the eye while remaining remarkably wearable. The mixed brilliant cut multiplies tiny mirrors of light across the table and crown, producing a lively play of facets that responds beautifully to open settings, allowing light to enter and exit freely. For an engagement ring the stone will sit perfectly as a solitaire, held by four or six prongs that show off its pavilion depth and allow the vivid blue to dominate the composition. For a more ornate commission it adapts gracefully to a halo of diamonds or sapphires, where the cushion silhouette frames smaller gems like a painted window, or to a three stone layout where side gems can echo the depth and hue. The exact dimensions, 8.93 by 8.04 by 6.79 millimeters, make it straightforward to translate the stone into CAD models or hand drawn settings, ensuring precision when designing bezels, baskets, or custom gallery work. Jewelers will appreciate the stone's calibrated size for balancing metal weight, shoulder profiles, and accent stones, and designers will love how the mix of brilliance in the cut and the very very slight inclusions visible only under magnification make it a reliable centerpiece for either daily wear or statement pieces.

When you commission a piece with this Ceylon sapphire from The Natural Sapphire Company you are continuing the narrative that began under the Sri Lankan sun, selecting a gem whose provenance, treatment and proportions are all disclosed and respected. Our bench offers a range of custom pathways, from a minimal wire set that celebrates the cushion face, to an architectural design that uses filigree and custom engraving to tell a personal story around the stone. We build in practical considerations as well, using the pavilion depth and overall size to specify prong lengths and gallery clearance for comfortable wear, and recommending metals and accent palettes that will best support the vivid color intensity, whether that calls for the warm embrace of yellow gold, the clean contrast of platinum, or the modern edge of white gold. Heat treatment is a widely accepted enhancement for sapphires from this region, it is stable and durable under normal wear, and we fully disclose this as part of our commitment to honesty and longevity. For care we advise routine gentle cleaning with warm water and mild detergent, occasional professional inspection of the setting, and sensible precautions against hard knocks and extreme thermal shock.

If you imagine this sapphire at the center of a ring, pendant, or bespoke heirloom, we invite you to bring that vision to The Natural Sapphire Company where our design team will turn the stone's natural story into a crafted one, tuned to your proportions and preferences. We take pride in pairing provenance with artistry, matching a gem from Ceylon that already carries a tale of land and labor, with a setting that will carry your narrative forward. Whether you are creating an engagement piece meant to be worn every day, or a commissioned cocktail ring intended to be passed down, this cushion 4.65 carat blue sapphire offers the ideal balance of presence, wearability, and design versatility that custom jewelers and clients seek. Contact us for a private consultation, we will share photos, measurements, and recommendations, and guide you through the steps from initial sketch to finished jewel, ensuring that the stone you choose continues its journey, now as a treasured work of art.