This is a 2 & 1/2 by 7/8 inches 14 karat gold brooch in an artistic rendition of rose bush leaves with a carved natural opal pair of full blown roses. I think it may be unique, but only know for sure that it is artisan-made, not commercial. The opal has a light pale blue color with rich "fire glow" as well as blue-green pin fire lighting up the petals like cosmic dust. The ends curl slightly upward and it's in excellent condition.