Vintage 1980s costume iridescent rhinestone clip-on earrings

Brought in Japan in the late-80s. It’s large, well-made with a very special design. It’s the disco era! The iridescent crystal shows a variety of colors when photographed from different angles, thus, I put up more photos of them. The color of the metal is pale gold. There’s a heart embossed on the back clips. Approx. 1.7 (w) 1.5 (h) 0.7 (depth, not including the clip) inches They’re large but not heavy, check the photo of them on a scale.