1.77 Ct. Topaz from Ceylon (Sri Lanka)

This specimen is a transparent 1.77 carat sky blue topaz, presented in a classical emerald cut with dimensions 8.00 x 5.98 x 4.15 mm, the length to width ratio is approximately 1.34 to 1, a proportion that preserves table size while allowing for deep step facets to generate defined hall of mirrors light performance. The emerald cut is executed with true step faceting on the crown and pavilion, yielding long, parallel facet planes that emphasize clarity and color rather than scintillation, the result is an axial light return that reads as a crystalline, tranquil blue across the table. Facet junctions are crisp and symmetrical, the girdle is consistent which aids in predictable mounting and minimizes the need for weight sacrificing re faceting, the pavilion depth has been calibrated to balance face up spread with internal reflection, and the crown angles have been set to optimize the topaz refractive index so that the stone reads lively without appearing washed out.

Color characterization is precise, the hue sits squarely in the sky blue range with a light color intensity that benefits from even saturation across the table and faceted planes, there is no observable color zoning at eye level, and the light tone allows for excellent dissemination of blue without encroaching into green or gray modifiers. Clarity is graded as eye clean evaluated at eye level, the absence of visible inclusions in the plane of vision is particularly important in an emerald cut where inclusions can be magnified by the step facets, here the stone presents a clean window with only microscopic, non distracting features when viewed with standard 10x magnification. The polish quality is excellent, which contributes materially to surface brilliance and tactile smoothness, the facet planes exhibit mirror finish consistency, which in turn preserves light return and enhances perceived depth. This topaz has undergone controlled irradiation enhancement, a stable, industry accepted treatment to induce the desirable sky blue tone, the treatment is permanent under normal wear and does not diminish structural integrity when properly handled and stored.

From a craftsmanship perspective, the cutter has prioritized optical symmetry and weight retention, the result is a well balanced gem that will sit precisely in prong or bezel settings without tilt, the rectangular emerald cut lends itself to classic solitaire rings, tailored cocktail rings, or bespoke pendants where facet orientation can be aligned to the jewelry axis for maximum visual impact. Topaz has a Mohs hardness of 8, offering robust daily wearability with appropriate care, the stepped pavilion and controlled girdle thickness reduce the risk of chipping during setting, however as with all gemstones, edges should be protected during vigorous activity. The specific dimensions and carat weight make this stone versatile for mid to high proportion settings, and because the cutting retained a strong face up area, perceived size on the finger or in a pendant will be greater than many stones of similar weight with deeper pavilion profiles.

Investment potential is anchored in a combination of technical quality, provenance, and market dynamics, this Ceylon Sri Lanka origin topaz benefits from a distinguished source that collectors increasingly prize, Sri Lankan gemstones carry a heritage premium when documentation and traceable supply chains are present. While blue topaz is frequently encountered in the market, gems with an exceptional combination of eye clean clarity, excellent polish, precise emerald cut proportions, and verified origin occupy a narrower segment and command stronger secondary market interest. Irradiation treated sky blue topaz is stable and widely accepted, however long term appreciation is most likely for gems that pair treatment transparency with superb craftsmanship and provenance, this specimen meets those criteria, and when acquired through The Natural Gemstone Company it is supported by our sourcing documentation and grading notes, factors that materially enhance liquidity for future resale. For buyers focused on capital preservation and potential appreciation, consider pairing this gem with formal certification, archival quality provenance, and secure storage, these measures optimize marketability and help capture value over time as collectors and designers increasingly favor well documented, finely cut natural gems.