Art Deco platinum bow brooch with diamonds and calibrated sapphires

A knot brooch in platinum set with old-cut diamonds and 8/8 diamonds
set with calibrated sapphires.

• Material: Platinum
• Hallmark: Owl
• Weight: 6.3g
• Length: 4.5 cm
• Width: 1 cm
• Carat weight: 1.5 cts
• Number of stones: 30 stones
• Period: 1930