Gold and opal Victorian love knot pin.  Antique estate sale love knot pin made of 10k rolled gold plate with prong set opal center and C clasp circa 1890-1910.  Two of the four lobes of the "knot" have repousse designs in a yellow shade of gold while the other two lobes are plain and they have the tint of rose gold.   A dimunitive piece typical of the era, it measures 11/16" in diameter.