Exotic art nouveau opal platinum diamond flapper era pin.
Oval cabochon opal approximately 3.67 carat.
Opal is 18 millimeters, 9 millimeters, 4 millimeters.
7 round and baguette cut diamonds are approximate 0.23 carat.
ANTIQUE ART DECO ROARING 20S PLATINUM AND 14K GOLD PIN.
TOTAL OPAL AND DIAMONDS APPROXIMATELY 3.90 CARAT.
Antique geometric design deco flapper era diamond pin.
Amazing colors vivid green, blue, red, yellow, orange Australian black opal.
PIN TOP IS 22 MILLIMETERS BY 10 MILLIMETERS.
1 3/4" INCH LONG.