A MID-19TH CENTURY ENAMEL AND DIAMOND BANGLE
The octagonal plaque with applied rose-cut diamond-set cyrillic 'N' for Tsar Nicholas I (reigned 1825-1855) beneath a similarly-set coronet on a cobalt blue enamel ground to a two-tiered rose and old-cut diamond cluster border and further elaborately chased hinged bangle half decorated with blue guilloché enamel, plaque circa 1840, bangle circa 1860, internal diameter 5.1cm, mounted in silver and gold
A MID-19TH CENTURY ENAMEL AND DIAMOND BANGLE
The octagonal plaque with applied rose-cut diamond-set cyrillic 'N' for Tsar Nicholas I (reigned 1825-1855) beneath a similarly-set coronet on a cobalt blue enamel ground to a two-tiered rose and old-cut diamond cluster border and further elaborately chased hinged bangle half decorated with blue guilloché enamel, plaque circa 1840, bangle circa 1860, internal diameter 5.1cm, mounted in silver and gold
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