Fantasia by DeSerio crystal cocktail ring. 18-karat white gold-plated sterling silver. Prong-set, pear-cut pink crystal face. Pavé clear crystals trim shank. 6.5 total crystal carat weight. Made in USA. About Fantasia by DeSerio: In 1925, Al DeSerio was recognized as one of the top diamond setters in the United States. Eventually he founded his own diamond-setting firm with his three sons, who were inspired to create Fantasia by DeSerio. This immensely popular and affordable collection features luxurious-looking pieces with quality manmade stones.