A Wonderful Antique Diamond Necklace, Victorian Rose, Green and Yellow Gold, Edwardian to Art Deco Period, circa 1920 with Mother of Pearl and Original Clasp. The exceptionally beautiful antique necklace is composed of rose gold, yellow gold, and rare green gold. It has a sparkling antique single cut diamond at its center. The stone in the middle is gray mother of pearl with beautiful luster. The chain and clasp are original to the piece. The pendant measures about 1 5/16 inch long by about 11/16 inch wide. The entire necklace measures about 15 inches long. This piece dates to the late Victorian to early Art Deco/ Edwardian Era, circa 1900-1920's. It was acquired through an estate collection and is in lovely vintage condition.