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26.64 Ct. Blue Topaz from Brazil
Item ID: | K25207 |
|---|---|
Dimensions (MM): help | Length: 20.26 Width: 15.19 Height: 10.96 |
Weight: | 26.64 Ct. |
Color: help | Blue |
Color intensity: help | Medium |
Clarity: help | Very Slightly Included |
Shape: help | Oval |
Cut: | Mixed Brilliant Cut |
Cutting style: | Faceted |
Enhancements: help | Irradiation |
Origin: help | Brazil |
Per carat price: help | $24 |
This transparent blue topaz weighs 26.64 carat, and presents an oval outline measuring 20.26 by 15.19 by 10.96 mm, cut in a mixed brilliant style that pairs broad table and crown facets with a finely faceted pavilion to optimize both scintillation and depth. The clarity is graded very slightly included at eye level, the color intensity is medium, and the polish is excellent. The blue tone is the result of controlled irradiation enhancement, and the stone originates from Brazil. The Natural Gemstone Company is presenting this specimen with full disclosure of its enhancement and gemological characteristics.
The internal features of this topaz create an unmistakable signature that is subtle yet diagnostic. Under magnification the gem displays a combination of very fine acicular growth tubes and minute two phase fluid inclusions, accompanied by isolated pinpoint mineral crystals and faint planar growth zoning. These elements are distributed in a delicate network rather than as dominant fractures, producing soft internal textures that catch and scatter light in a manner distinct from a uniformly clean crystal. When the stone is rotated, the mixed brilliant faceting interacts with these micro structures to reveal fleeting ribbons of light and slightly varied blue flashes across the table, a behavior that reads as a personal fingerprint for this particular piece. Because the inclusions are fine and the overall transparency remains high, they do not significantly detract from brilliance or face up appearance, instead adding character and provenance cues that support identification and origin assessment. The irradiation enhancement that gives the gem its blue tone is stable, and it does not obscure the inclusion pattern, allowing the stone to retain both visual appeal and gemological integrity. For applications that value natural internal character as part of a gem's identity, this Brazilian blue topaz offers a clear, well defined signature combined with precise cutting and an excellent surface finish.
