22.90 Ct. Sky Blue Topaz from Ceylon (Sri Lanka)

This one of a kind transparent 22.90 carat sky blue topaz from Ceylon Sri Lanka is an exceptional choice for custom jewelry, and its large size and asscher octagon shape make it particularly well suited to bespoke designs, where presence and precision matter most. At 15.91 by 15.48 by 10.69 millimeters this gem sits in a size class that commands attention without requiring a heavy mounting, allowing a custom jeweler to balance scale and comfort with ease. The asscher cut, with its stepped pavilion and square octagonal outline, gives a hall of mirrors effect that differs markedly from the scatter of light seen in brilliant cuts, making it ideal for designs that emphasize geometric symmetry and refined light play, such as modern solitaire rings, elegant pendant frames, and bold cocktail settings. Compared to smaller topaz pieces commonly offered in the market, this stone provides a rarity in sheer carat weight combined with exacting dimensions, ensuring the finished piece will read as a true centerpiece rather than a mere accent.

When you compare this asscher cut sky blue topaz to other blue gemstones on the market, its advantages in value and versatility become clear. Aquamarine of comparable size and color typically carries a premium that can be several times higher, and fine blue sapphires of similar dimensions are even rarer and costlier, which makes this topaz an economical way to achieve a large scale blue centerpiece without compromising on color appeal. Versus mass produced Swiss blue topaz or heavily irradiated smaller parcels, this Ceylon origin gem stands out for its medium color intensity that reads as natural and pleasing rather than overly electric, and its very slightly included clarity grade evaluated at eye level gives it a balance of character and transparency that supports confident settings where the stone is viewed closely. The stone has been irradiated as part of standard color enhancement practices for sky blue topaz, a common and stable treatment that yields consistent blue tones, and this transparent treatment allows designers to rely on predictable, long lasting color performance when creating heirloom pieces.

Quality in cut and finish often separates a good stone from a great one, and this topaz excels in both. The asscher cut is not commonly executed on larger topaz, which makes this specimen particularly unique among market offerings where round and oval cuts dominate. The precision of the step facets and the excellent polish work together to deliver crisp facet junctions and clean light returns, which translate directly to visible brilliance and depth in a completed jewel. The stone’s measured depth of 10.69 millimeters contributes to a pronounced pavilion that supports strong internal reflections while maintaining a comfortable face height for a bezel or prong setting. Compared with cheaper, heavily included material that can appear cloudy in bright light, this transparent gem retains clarity and sparkle even in close inspection, making it a superior choice for clients seeking a high impact look that remains elegant and wearable.

At The Natural Gemstone Company we regularly advise customers selecting large colored stones for custom work, and this asscher octagon sky blue topaz represents a rare confluence of scale, cut quality, provenance, and value. For designers, the straight lines and right angles of the asscher shape simplify setting decisions, permitting crisply aligned bezels, stepped halos, and architectural gallery details that enhance the stone rather than compete with it. Because the stone is substantial but not unwieldy, it can anchor a statement ring, a pendant that sits flat to the chest, or a bespoke cuff with integrated bezel channels, giving creators design freedom without compromise. Finally the combination of Ceylon origin and the stone’s visual attributes delivers a narrative of authenticity and refined taste that often resonates with collectors and gift buyers alike, making this topaz from The Natural Gemstone Company a smart and striking choice for any custom jewelry commission.