Oscar de la Renta. Designed and handcrafted in America using the finest materials from Swarovski crystals and Czech glass, to hand-poured cabochons! This hand crafted Pink Aurora Borealis colored crystals around accented with faux crystals. earrings are set in gold plated metal. Very elegant piece of jewelry. They are stamped at the back Oscar de la Renta. The condition is very good, see photo's. Óscar Arístides Renta Fiallo (22 July 1932 – 20 October 2014), known professionally as Oscar de la Renta, was a Dominican fashion designer. Born in Santo Domingo, he was trained by Cristóbal Balenciaga and Antonio del Castillo. De la Renta became internationally known in the 1960s as one of the couturiers who dressed Jacqueline Kennedy. He worked for Lanvin and Balmain. His eponymous fashion house has boutiques around the world, and is headquartered on Madison Avenue in Manhattan.