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

This yellow sapphire is presented by The Natural Sapphire Company as a single, semi transparent specimen weighing 20.11 carats, with dimensions 28.03 x 11.02 x 7.80 mm. The stone retains a various shape that closely follows its natural crystal habit, resulting in an elongated form that reads as articulated and sculptural in three dimensions. The cut is described as a rough crystal cut, a choice that preserves the inherent geometry and growth features of the original crystal rather than imposing a classical faceted outline. Photographic images show a symmetrical elongation with tapered terminations, and axial banding consistent with natural growth zoning. The overall presence is that of a large, distinct sapphire that communicates its origin in form as well as in color and internal structure.

Color characteristics are measured as medium intense yellow, distributed across the stone with subtle variations that reflect the natural zoning typical of sapphires from Ceylon, Sri Lanka. The tone sits in a medium range, supporting a clear yellow identity without tipping into excessively dark or overly pale territory. The gem is semi transparent, allowing light to transmit and reveal internal features rather than producing full transparency. The clarity is graded as very slightly included when evaluated at eye level, indicating that small internal features such as feathering, mineral inclusions, or growth lines are present but do not significantly detract from overall appearance when viewed unaided. These inclusions contribute to the stone character and serve as natural fingerprints of its formation, and because there has been no enhancement applied, the color and clarity are entirely natural attributes of the material.

The rough crystal cut and excellent polish should be considered together when planning any setting or further work on the gem. The current finish demonstrates careful surface preparation that enhances luster on the existing crystal planes, while the preservation of the natural outlines maintains the specimen aesthetic. The dimensions 28.03 x 11.02 x 7.80 mm make the piece suitable for designs that favor elongated profiles, including horizontal or vertical settings in pendants, bespoke cocktail rings, or as a central element in a mixed metal, artisan style mounting. The substantial carat weight of 20.11 carats allows for creative design approaches, including open bezel settings that protect the shoulders while revealing the body of the gem, or custom prong frameworks that secure the piece along its length. Any cutting or recutting decisions should account for the internal zoning and inclusions, and our specialists at The Natural Sapphire Company can provide technical guidance to balance weight retention with desired optical outcomes.

Provenance and care considerations are straightforward. The sapphire originates from Ceylon Sri Lanka, a source known for producing a wide range of sapphire colors with characteristic growth features. No enhancement has been applied to this stone, and the untreated status is a significant attribute for clients and designers who prioritize natural material authenticity. For routine care, gentle cleaning with warm soapy water and a soft brush is recommended, avoiding exposure to extreme heat or sudden temperature changes that may affect the stone or any mounting. For any further treatment, recutting, or bespoke design work our gemologists and designers at The Natural Sapphire Company are available to advise on practical considerations including setting orientation, protective measures for the rough crystal profile, and conservation of the stone weight and natural aesthetic. Documentation of the gem weight, dimensions, cut description, clarity assessment, color intensity, enhancement status, and origin will be provided on request to support valuation and design decisions.