Roll over image to zoom, or click here to view full size
An Fine antique brooch with large central amethyst 50 ct surrounded by a floral style spray of diamonds 8 ct approx total length 5 cm ( a similar example can be found in the Victorian and Albert museum the Siberian amethyst were a gift from Tsar Alexander 1 of Russia to Frances Anna,wife of the 3rd Marquess of Londonderry .
Estimate £6,000 to £8,000
Unsold