Nothing glistens in the sun quite like a pair of rhinestone sunglasses. A rhinestone (or paste or diamante) is a diamond simulant made from rock crystal, glass or acrylic. Originally, rhinestones were rock crystals gathered from the river Rhine, these days they are diamond imitations made by coating the lower side of glass with metal powder. They are called Strass in many European languages after their inventor. All our prices include free UK P&P, international orders are just £3.97 extra.