20.72 Ct. Topaz from Ceylon (Sri Lanka)

This exceptional blue topaz from Ceylon is a statement of refined taste and natural personality, offered by The Natural Gemstone Company. Weighing 20.72 carats and precisely cut to dimensions of 18.05 by 12.65 by 8.90 millimeters, this stone is fashioned into an elegant emerald cut that maximizes the gems crystalline geometry. The overall presentation is of a highly transparent gem with a clarity grade of very slightly included evaluated at eye level. The color reads as a medium light blue, evenly distributed, and the polish has been executed to an excellent standard. The piece has been enhanced by irradiation, a standard and stable trade treatment, disclosed here so collectors and designers can make an informed choice. What separates this topaz from ordinary blue stones on the market is the way its internal features interact with the emerald cut, producing a signature appearance that is immediately recognizable.

The most compelling feature of this topaz is its internal inclusions which act like the gems fingerprint. Rather than detracting from the gem, the very slightly visible inclusions create a subtle tapestry of fine wisps and pinpoint reflections that animate the stone under changing light. Viewed table up the step facets of the emerald cut act like mirrors, catching those tiny reflective pinpoints and returning a soft, linear scintillation that runs parallel to the gems facets. From the crown angle the inclusions appear as delicate lanes of character that emphasize the clarity rather than obscure it. Those who compare similar stones will notice that this topaz shows a balanced presence of natural features, enough to give the gem individuality and story, but restrained enough to retain excellent transparency and light return. Under loupe magnification the inclusions reveal growth planes and micro fractures that are typical of natural topaz, confirming origin and authenticity, while at normal viewing distance the gem reads as bright and clean.

When compared to other blue gemstones in the market, this Sri Lankan blue topaz offers a unique intersection of size, character, and value. Aquamarine often presents a softer pastel hue but commands a premium for gem quality large sizes, while Swiss blue and London blue topaz varieties are often produced from different origins and treatments that give them a more saturated or electric tone. This Ceylon topaz sits in a desirable color window of medium light intensity, which reads fresh and lively, especially in an emerald cut where color is shown in broad planes. The 20.72 carat weight gives designers a rare canvas, and the stone will outperform many smaller stones of similar or higher per carat cost, because of its scale and presence. The disclosed irradiation enhancement is a widely accepted practice that stabilizes and enhances blue tones, and when combined with the excellent polish and careful emerald cut proportions, the result is a stone that rivals more expensive gems for stage presence and visual appeal, while delivering superior value.

For those commissioning fine jewelry, this gem offers practical advantages as well as aesthetic ones. Topaz is a hard and durable gemstone suitable for rings, pendants, and statement pieces that will be enjoyed for daily wear with appropriate care. The emerald cut emphasizes clean geometry and elegant lines, making the gem ready to set in classic four prong or bezel settings that protect the girdle and showcase the table. The internal inclusions add a signature to the stone, they make each viewing unique, and they are often prized by collectors who appreciate character in natural gemstones. Designers who want a piece that feels bespoke will value how the inclusions catch the light differently from each angle, delivering a living interplay of reflections that photographs well and looks extraordinary in movement. For customers seeking an alternative to mass market topaz, this Sri Lankan gem presents a refined option that blends natural provenance with superior cutting and finishing.

At The Natural Gemstone Company we stand behind the provenance and the disclosed treatments of every gem we offer. This blue topaz comes from Ceylon, and its natural history is visible in the stone itself through the inclusions and growth features. We provide full disclosure regarding irradiation, and we are available to advise on setting choices that protect the stone and maximize its unique signature. If you are choosing between similar stones, consider the scale, the quality of the emerald cut, the evenness of color, and the presence of character giving inclusions, all of which this piece has in abundance. For collectors and designers who want a large, visually clean yet characterful blue topaz that stands apart from generic market offerings, this 20.72 carat, 18.05 by 12.65 by 8.90 millimeter emerald cut from The Natural Gemstone Company is an exceptional choice.