Riondo USA has launched two sparkling wines. BLU prosecco has fresh and intense sensations with aromas of pear, peach, wisteria and hints of citrus, the company says. R37 Demi-Sec is a sweet prosecco obtained though the Charmat method and has a nose of ripe apple, apricot and acacia. Both proseccos have a suggested retail price of $13.99 per 750-ml. bottle.