Vintage signed YSL necklace made by Robert Goosens Paris France circa 1980s/early 1990. Made with real Lapis Lazuli stones in the center rival glass crystal. Huge prong set accents; 3 slide panels/strands feature oval shaped metal with tonal deep last blue enamel overlay. Several have emerald cut high bezel mount clear glass stones. The necklace measure 23-1/2" and has an open link chain with a spring closure. The floral centerpiece is 3-1/2" wide. This piece is signed "YSL" and is in excellent condition.