Mid-Century Old European Cut Diamond Brooch in Platinum signed-designer to a platinum chain

to a platinum chain

A chicly carved circle of deep red carnelian is adorned with a trio of high polish yellow gold lines each featuring a central sugarloaf cabochon of inky black onyx

separated by a prong-set round diamond

26 carat black diamond has natural surface reaching cavities

The retail price was $1

Mid-Century Old European Cut Diamond Brooch in Platinum signed-designer to a platinum chainThe geometric brooch of pierced design, centering on three bezel set, old European cut diamonds extending to diamond line sprays, all within a diamond border. Comprising old European cut and single cut diamonds, all set in platinum, with millegrain detailing.