This sublime antique brooch, dating to the turn of the 20th century, features an electric pastel cabochon opal, weighing 16 carats, bezel set in 18k gold and framed in a soft periwinkle blue enamel border, finished with silver lace and glistening rose-cut diamonds. 1 1/2" x 1 1/16".
Opal: estimated 16 carats, 27 x 19 x 5 mm
Weight: 11.8 grams
Notes: the opal is not original to the brooch