21.10 Ct. Yellow Sapphire Crystal from Ceylon (Sri Lanka)

This listing from The Natural Sapphire Company features a single natural yellow sapphire weighing 21.10 carats, with finished dimensions of 32.07 x 10.95 x 7.72 mm. The gem presents a semi transparent body and an overall various shape that follows the character of the original crystal. The cutting style is described as a rough crystal cut, which preserves facets that are sympathetic to the sapphire crystal habit rather than adhering to a conventional faceted outline. Clarity is graded as eye clean when evaluated at eye level, indicating that no significant inclusions are visible to the unaided eye under typical inspection conditions. Color is described as intense in overall intensity, providing a strong and vivid yellow presence, and the surface finish is noted as excellent polish. This sapphire is natural and untreated, with no heat or chemical enhancement, and the documented origin is Ceylon, Sri Lanka.

Visually the stone communicates a balance between crystalline texture and polished surfaces. The rough crystal cut allows for planes that reflect light in a more diffuse manner than a standard faceted pavilion, producing areas of soft brilliance interspersed with satiny reflections along original crystal faces. Because the gem is semi transparent rather than fully transparent, light transmission is present but moderated, which gives the color depth and a substantive appearance when viewed face up. The intense yellow color shows good saturation, and the combination of tone and saturation contributes to a lively yet natural look that is characteristic of untreated Ceylon sapphires. The excellent polish enhances surface smoothness and tactile quality, allowing light to play across the stone without distracting surface film or abrasion. Eye clean clarity at this size is notable, as it permits the color and textural qualities of the rough crystal cut to be appreciated without internal features interrupting the visual experience.

From a design and practical perspective this sapphire is well suited to custom and artisan settings that emphasize the gem as the focal element. The various shape and elongated proportions lend themselves to linear designs such as vertical pendants, bezel set rings with protective metal rims, or bespoke necklace components that allow the gem to be oriented along its longest axis. A bezel or partial bezel setting will offer secure protection for the edges while preserving the polished areas, whereas a low profile prong or flush mounting can be used when the intention is to maintain closer visual contact with the gem surface. Given the untreated nature and desirable provenance from Ceylon, this sapphire is appropriate for both collectors who prioritize natural state material and for clients seeking a statement center stone that communicates authenticity. Routine care consists of gentle cleaning with warm soapy water and a soft brush, avoiding harsh chemicals and sudden temperature shifts, and periodic inspection of the mounting to ensure continued security.

In summary this 21.10 carat, 32.07 x 10.95 x 7.72 mm, semi transparent yellow sapphire offers a combination of intense natural color, eye clean clarity at normal viewing distances, and a distinctive rough crystal cut with an excellent polish. The gem is untreated, originating from Ceylon, Sri Lanka, and its physical attributes make it particularly suitable for considered bespoke settings that respect the stone s natural form. The Natural Sapphire Company documents the origin and enhancement status, and is available to provide further technical information and guidance on setting options and care recommendations for this specific material.