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One 12.91 carats barion antique cushion blue topal, swiss blue color, VS1 clarity, cut grade excellent, measuring 11.6 mm wide, 14.6 mm long, 9.2 mm deep; with excellent polish and excellent symmetry. The proportions of the blue topal are as follows: total depth 79.3%, table width 34.5%. Blue topaz is color enhanced by irradiation.

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