An Art Deco diamond double clip brooch dating to circa 1930, the geometric design set throughout

An Art Deco diamond double clip brooch dating to circa 1930, the geometric design set throughout with baguette cut, old cut and single cut diamonds, with a total estimated diamond weight of 3.50cts, the two clips convertible to a brooch with a total length of 54mm. Total weight 17.5 grams. Brooch testing as platinum to front, with white gold clip fittings.