2.59 Ct. Topaz from Brazil

This 2.59 carat round Swiss blue topaz from The Natural Gemstone Company is presented in precise gemological terms, with dimensions 7.76 x 7.78 x 5.82 mm, a mixed brilliant cut, transparent body, intense color intensity, and an excellent polish. The mixed brilliant proportions use a brilliant facet pattern on the crown coupled with a controlled step or modified pavilion scheme, producing strong return of light and a lively scintillation pattern while preserving weight. Clarity is described as very very slightly included when evaluated at eye level, indicating only minor pinpoint or needle inclusions that do not impede the gem s overall transparency or light transmission. The surface finish is uniformly high, with facet junctions aligned to maximize optical symmetry, and the stone has been enhanced by irradiation, the standard industry process used to achieve the characteristic Swiss blue hue. Origin is Brazil, a source known for producing topazes with consistent crystal quality, and the combination of precise cutting and intense coloration yields a gem suitable for center stone use where controlled brilliance and stable color are essential.

In comparative terms the hue and tone of this Swiss blue topaz occupies a distinct position on the blue spectrum when set against other famous gemstones, and when compared to London blue topaz the Swiss blue shows a lighter tone and a purer cornflower to sky blue hue without the deeper inky or greenish undertone typical of London blue. Against Brazilian Santa Maria aquamarine the topaz appears cooler and less green leaning, with higher chroma but a brighter tone, whereas Santa Maria aquamarine typically exhibits a slightly more subdued, oceanic blue with subtle green components. Compared with classic Ceylon sapphires the topaz displays a lighter tone and a bluer hue lacking the violet component and higher refractive brilliance of sapphire, and it contrasts strongly with Paraiba tourmaline which carries neon saturation and an intense green blue that is rare among topazes. For collectors and designers who value controlled hue, even tone, and predictable light performance, this 2.59 carat Swiss blue topaz from The Natural Gemstone Company offers a technically refined option that balances strong color, fine cut architecture, and reliable clarity.