Lot 700 , A 1930's/1940's Austro-Hungarian white gold, millegrain set diamond, frosted glass and black enamel rectangular brooch

A 1930's/1940's Austro-Hungarian white gold, millegrain set diamond, frosted glass and black enamel rectangular brooch, with geometric motifs, 37mm, gross weight 10 grams.
£400-600

Condition:
There is visible glue/residue to the reverse of all the glass panels, re-glued in place?? Seems a little crude to be part of construction. Three of the smaller diamonds each have a chip and one other has a crack to the table facet. A few very minor nicks to the black enamel.

Sold for £600