Unlike synthetic glass pearls, these Swarovski Austrian crystal pearls are made from SWAROVSKI ELEMENTS. They are the top of the line. They feature a signature pearl coating displaying incredible luster and consistency. With their crystal core, these pearls have a realistic weight and will warm to your skin like natural pearls. Swarovski crystal pearls also resist perspiration, UV rays, perfumes and scratches.have a leaded crystal core that gives them a heavier feel and warms to the skin. Their pearl coating is similar to a natural pearl luster and is consistent in color.