A gold, aquamarine, diamond and enamel brooch, by Alexander Tillander

A gold, aquamarine, diamond and enamel brooch, by Alexander Tillander
The heart shaped panel with central triangular-shaped cut cornered aquamarine with rose-cut diamond surround against a pink guilloché-enamel field with applied rose cut diamond garland decoration within a white piqué enamel scrolling border and diamond three-stone surmount, Russian marks for gold, later brooch pin with spurious mark
Workmaster's mark for Alexander Tillander