Welcome to Cornerstone Certified Vineyard. Owned and operated by Jim and Kristy Pratt, we offer vineyard management services, rootstock and budwood cuttings, winegrape sales, and a fantastic bottle of Pinot Noir! Jim has been working in the industry for over 40 years, and prides himself in meticulous management, close communications with our clients and wineries, and in our world class winegrapes.