沒有保留價 - 1 pcs 藍色 黃玉 - 54.38 ct - 國際有色寶石協會 (ICA GemLab) - 瑞士蓝托帕石

Beautiful natural gemstone, Perfect for collectors, Jewelry makers, or anyone looking for something special.

Species : Natural Topaz

Variety : Blue Topaz

Shape and Cutting Style : Cushion

Weight : 54.38 CARAT

Origin : Brazil

Measurements : 21.16 x 18.41 x 14.23 mm

Color : Swiss Blue

Treatment : Heated

Transparency : Transparent

Characteristics : Topaz naturally spans colorless, brown, yellow, pink, and more rarely red or violet; blue topaz is often produced by irradiation and heat treatments. Fluorine and aluminum form its fundamental structure, granting a Mohs hardness of 8 with perfect basal cleavage. Fine-quality transparent stones can display remarkable brilliance when skillfully cut. Pink and red topaz varieties are particularly prized for their rarity. One of the ‘big gems’ historically, topaz endures as a versatile choice for any jewelry style.

Comments : Topaz is commonly heated to improve or change the color. Color authenticity is currently undeterminable.


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