Edwardian 18k/Sterling Plique-À-Jour Sapphire, Ruby, & Diamond Butterfly Brooch 1990 Black and dark opals are

Black and dark opals are the most rare and valuable of all natural opal varieties

Measurements: Each earring hangs 1 1/2" long

An overlapping design where the two ends of the band meet makes the ring slightly adjustable

and the stone is intact

The back of the top coral cabochon is decorated with a beautifully intricate floral motif bail

Edwardian 18k/Sterling Plique-À-Jour Sapphire, Ruby, & Diamond Butterfly Brooch 1990 Black and dark opals are"Plique Jour" is a French term that means "letting in daylight". The term refers to the jewelry technique in which enamel is applied in cells, similar to cloisonn, but with no backing. This allows light to shine through the transparent or translucent enamel, forming a beautiful stained glass appearance. This incredible and colorful Edwardian (ca1910s) era butterfly brooch is a wonderful example of the Plique Jour craft! Crafted in 18k yellow gold and