This art deco, couture brooch is signed Les Bernard. Les Bernard was founded in 1963, and made jewelry of the finest materials, such as semi-precious stones, Swarovski crystals, etc. Les Bernard was a jeweler to the stars and did all of the jewelry on the hit series Dynasty. This company disbanded years ago and I have not been able to find a duplicate of this piece. There is an emerald color crystal, and a turquoise colored crystal surrounded by Swarovski crystals. This piece is incredibly well made. Les Bernard is becoming more and more collectible.