3.66 Ct. White Sapphire from Ceylon (Sri Lanka)

This transparent 3.66 carat round white sapphire is an exceptional example of natural corundum, with precise dimensions of 8.60 x 8.62 x 6.28 mm that speak to careful cutting and proportional balance. The stone is fashioned in a mixed brilliant cut, a design that combines the scintillation and fire of a brilliant crown with a pavilion arrangement optimized for light return, creating a lively and eye catching performance under varied lighting conditions. Clarity has been assessed as very slightly included, evaluated at eye level, which indicates only minimal internal features that do not interrupt the gem s transparency or overall brightness when viewed without magnification. Color is classified as colorless, which for an educated buyer means the stone displays the purest expression of white sapphire, free from noticeable body color that could affect brilliance. The polish is excellent, ensuring crisp facet junctions and minimal surface abrasion, and the enhancement status is none, confirming the sapphire is natural and untreated, a characteristic that materially increases both the gem s desirability and its long term stability. Origin is Ceylon, Sri Lanka, a source renowned for producing sapphires with exceptional crystalline quality, and this provenance adds a layer of historical and geological significance that informed collectors appreciate.

From the perspective of a gem professional and experienced buyer, the combination of attributes in this sapphire places it in a class of its own for both wearable jewelry and collectible holdings. At 3.66 carats the gem offers a substantial presence for a center stone without moving into sizes that compromise everyday wearability, and the nearly symmetrical measurements of 8.60 x 8.62 mm deliver visual balance in a ring, pendant, or bespoke setting. The mixed brilliant cut is deliberately chosen to harness the high refractive index of sapphire, maximizing return of white light and subtle spectral flashes, while the excellent polish maintains precise facet geometry that enhances both brilliance and perceived clarity. The very slightly included clarity grade, as determined at eye level, communicates that inclusions are minor and do not detract from transparency, which is particularly important in colorless material where any internal features can become more apparent. Importantly for conservative collectors, the absence of enhancement removes concerns about long term fading, instability, or the need for special disclosures, and it preserves the intrinsic value of the natural corundum crystal as it was formed in its Sri Lankan deposit.

When considering a gemstone as a generational heirloom, durability, provenance, and the ability to adapt to changing styles are paramount, and this white sapphire excels in all three areas. Sapphire rates nine on the Mohs scale, second only to diamond on common hardness scales, which means the stone will withstand the wear and handling of daily life while retaining its faceted finish across decades and generations. The colorless tone and classic round mixed brilliant cut are timeless, translating seamlessly from traditional solitaire rings to more contemporary settings, allowing the gem to be reset or restyled for heirs without losing its fundamental aesthetic or monetary appeal. The fact that this sapphire is untreated and originates from Ceylon, Sri Lanka, provides documented provenance that enhances its narrative and collectible value, and The Natural Sapphire Company stands ready to assist with formal gemological documentation, secure mounting recommendations, and guidance on care to ensure the stone retains both its beauty and its story. With proper setting choices that protect the girdle and crown, routine professional cleaning, and the practice of insuring and documenting the piece, this 3.66 carat white sapphire can become a treasured family asset, passed down with the history of its origin and the assurance of its natural, untreated character.