Antoine Foucault established Domaine du Collier in 1999 with his companion Caroline Boireau. Today they farm nearly 7 hectares of vines, produce a mere 1,250 cases of wine, and have surpassed rising star status to join the ranks of top growers in Saumur. Antoine cut his teeth at the famed Clos Rougeard in Saumur-Champigny, and at age 26, set out on his own to create Domaine du Collier. Two-thirds of the estate is planted to Chenin, most of which are old vines and some pushing 100 years of age. The remaining third is planted to Cabernet Franc, namely in the important lieu-dits of La Ripaille and La Charpentrie. 

Antoine has remarked that while his background was in Saumur Champigny, the majority of the terroirs he currently farms are particularly suited to white wines with their stony, poor soils. The identity of Domaine du Collier is rooted in the grand whites of Chenin Blanc from the limestone-rich hillsides of Brézé.

Antoine works the vineyards organically, adamantly avoiding the use of chemical fertilizers or weed killers. The soils are worked to send roots into the chalky tuffeau, and grapes are hand harvested with intense sorting. A natural approach is carried into the cellar with a commitment to wild yeast fermentation, extended aging of 24 to 36 months without racking in a very cold underground cellar, and zero sulfur until bottling. These are wines that often transcend grape variety in their deep expression of the limestone of Brézé.