The WSET Level 4 Diploma is a big step in your wine journey—don’t go it alone. As WSET’s highest certification, it offers an expert-level understanding of the factors influencing a wine’s style, quality, and price, building both theoretical and practical knowledge.

Begin your WSET Level 4 Diploma in Wine with D1 – Wine Production, and unlock how grapes are grown and wine is made. Discover how every decision impacts the wine’s style, quality, and price from the vineyard to the cellar. Enroll now and transform your passion for wine into a profound understanding that sets you apart in the wine world.

D2 Wine Business dives more deeply into the factors that contribute to the price of wine. You’ll also understand the many types of businesses engaged in the production of wine, available options for getting wine to the point of sale, and key considerations in wine marketing. Prerequisites: You must have taken the D1 course to start D2 (receipt of D1 exam results not required).

In the WSET Level 4 D3 Wines of the World class, students examine the still wines produced in France, Germany, Austria, Hungary, Greece, Italy, Spain, Portugal, USA, Canada, Chile, Argentina, South Africa, Australia, New Zealand and China. Prerequisites: You must have be enrolled in the WSET Level 4 Diploma and have taken the D1 and D2 exams (receipt of results not required).

Through detailed theoretical and practical study, explore the sparkling wines produced in France, Germany, Italy, Spain, the UK, the USA, South America, South Africa, Australia, and New Zealand. Prerequisites: You must be enrolled in the WSET Level 4 Diploma program and have taken the D1 and D2 exams (receipt of results not required).

In the D5 unit of the WSET Level 4 Diploma program students explore fortified wines of the world, including Sherry, Port, Madeira, Vins Doux Naturels and Rutherglen Muscat, through theoretical and practical study. Prerequisites: You must be enrolled in the WSET Level 4 Diploma program and have taken the D1 and D2 exams (receipt of results not required).

While Diploma’s Unit 6 is an independent project, our proprietary online classroom offers resources to ensure your paper meets WSET expectations. WSET releases two topics each August, allowing students to pick ONE. This year’s topics include "Virginia Wine" (due January 31, 2025) or "PIWI Grape Varieties (due July 31, 2025). If you don’t like either of the two available topics, you can wait until the next academic year for two new topics to be released.