Costco: Baum Essex “Studio Lines” 16-Pc Dinnerware Set $29.99 by Rhonda July 16, 2020 8/12/16. Sturdy stoneware is great for everyday meals. Costco has the Baum Essex “Studio Lines” 16-Piece Dinnerware Set priced at $29.99. The set comes in blue or gray (selection may vary… 0 FacebookTwitterPinterestEmail