Gemma produces Nebbiolo-based wines from Piemonte in Northern Italy, a region celebrated for its powerful, structured reds. The winery's portfolio centers on expressions of this demanding varietal: the Nebbiolo Langhe Ruja, the Barbaresco, and the Barolo Riserva Giblin. Nebbiolo demands specific terroir and winemaking discipline—it yields wines marked by high tannins, acidity, and the potential for complexity across years. Wine Enthusiast, Falstaff, Decanter, Wine Advocate, and Wine Spectator have all assessed Gemma's releases. The winery's focus on single-varietal Nebbiolo reflects Piemonte's traditional commitment to this grape as the foundation of its most serious wines.