Strass diamante artificiale estrás rhinestone stras strass strass štras στρας יהלומים מלאכותיים (ריינסטון) paste rhinestones rijnsteen strass A colorless artificial gem of paste or glass, often with facets that sparkle in imitation of a diamond. Also refers to foil-backed or silvered cut glass used to imitate diamonds. Rhinestones were originally quartz pebbles found in the Rhine River, thus the name (AAT).