WSET Level 4 Diploma | D3 Wines of the World

$2,650

Most awarded WSET school in the US

Trusted by thousands of students

WSET LEVEL 4 Diploma – D3 WINES OF THE WORLD COURSE

In the WSET Level 4 D3 Wines of the World course, 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).

This course is an instructor-led, virtual course with live classes held on zoom. The exam must be taken in-person in Napa, California.

For future course webinar and exam dates, please see the "What's Included" section below.

Price includes all study materials, exam fee, tuition, and postage.

A recommended wine purchase list will be provided for this course. A limited number of optional wine kits are available for purchase from our partner. It includes 102 curated 100mL wine samples, which are tasted during class sessions throughout the course. A link to purchase the kit will be included in your course registration confirmation email. Wine kits will be delivered right before your first tasting webinar.

What’s Included

13 instructor-led webinars covering key wine-producing regions and styles. Each class runs four hours and is also recorded for flexible learning.
Two full, instructor-led mock exam webinars near the end of the course (one theory and one tasting, using recommended wines) with live group feedback on your answers
Comprehensive study support through our proprietary online classroom, including worksheets, dozens of mock exam questions, opportunities to have your answers graded, custom-commissioned maps, and more.
Twice-weekly open office hours with our Diploma Program Director, Noelle Hale. Bring your questions!
Registration for the next available D3 exam

To taste along with the instructor during classes, consider purchasing the optional wine kit containing 102 carefully selected samples of 100mL each from our partner, Small Lot Bottles. It is extremely useful for calibration and also contains 12 samples that are used in a full mock tasting exam toward the end of the course.

Click here to purchase the optional wine kit from Small Lot Bottles. Wine kits will be delivered right before your first tasting webinar.

WSET Level 4 D3 Webinar Schedule & Exam Dates

Course Start: March 23, 2026

15 sessions: Sat 9-1pm PT (for 4 hrs) 3/28/26, 4/11/26, 4/25/26, 5/2/26, 5/16/26, 5/30/26, 6/13/26, 6/27/26, 7/11/26, 7/25/26, 8/8/26, 8/22/26, 9/12/26, 9/26/26 (9am-3pm for mock theory exam), 10/3/26 (9am-3pm for mock tasting exam)
Exam: Oct 21-22, 2026

Course Start: October 26, 2026

15 sessions: Sat 9-1pm PT (for 4 hrs) 11/7/26, 11/21/26, 12/5/26, 12/12/26, 1/2/27, 1/9/27, 1/23/27, 2/6/27, 2/20/27, 2/27/27, 3/13/27, 3/20/27, 4/3/27, 4/17/27 (9am-3pm for mock theory exam), 4/24/27 (9am-3pm for mock tasting exam)
Exam: May 11-12, 2027

Course Start: March 29, 2027

15 sessions: Sat 9-1pm PT (for 4 hrs) 4/3/27, 4/10/27, 4/24/27, 5/8/27, 5/22/27, 6/12/27, 6/26/27, 7/10/27, 7/24/27, 7/31/27, 8/14/27, 8/28/27, 9/11/27, 9/25/27, 10/2/27
Exam: Oct 20-21, 2027

Course Start: Oct 25, 2027

15 sessions: Sat 9-1pm PT (for 4 hrs) 11/6/27, 11/20/27, 12/4/27, 12/11/27, 1/8/28, 1/22/28, 1/29/28, 2/12/28, 2/26/28, 3/4/28, 3/18/28, 3/25/28, 4/8/28, 4/22/28 (9am-3pm for mock theory exam), 4/29/28 (9am-3pm for mock tasting exam)

Exam: May 9-10, 2028

Format & Exam

This flexible online course is designed to accommodate students from around the world, with live webinars and interactive content delivered through Zoom. The final examinations are conducted in person in Napa, California, offering multiple dates to fit diverse schedules.

Course & Exam Dates

All webinars are held live on zoom. The exam must be taken in-person in Napa, California.

Course Start Date: October 27, 2025

Exam: May 12-13, 2026

Webinar Time: 9am-1pm PST on Saturdays

Webinar Dates: 15 sessions: Sat 9-1 (for 4 hrs) 11/1/25, 11/8/25, 11/22/25, 12/6/25, 12/13/25, 1/3/26, 1/10/26, 1/31/26, 2/7/26, 2/21/26, 3/7/26, 3/21/26, 4/4/26, 4/18/26 (9am-3pm for mock theory exam), 4/25/26 (9am-3pm for mock tasting exam)

Course Start Date: March 23, 2026

Exam: October 21-22, 2026

Webinar dates 15 sessions: Sat 9-1 (for 4 hrs) 3/28/26, 4/11/26, 4/25/26, 5/2/26, 5/16/26, 5/30/26, 6/13/26, 6/27/26, 7/11/26, 7/25/26, 8/8/26, 8/22/26, 9/12/26, 9/26/26 (9am-3pm for mock theory exam), 10/3/26 (9am-3pm for mock tasting exam)

Course Start Date: October 26, 2026

Exam: May 11-12, 2027

Webinar dates 15 sessions: Sat 9-1 (for 4 hrs) 11/7/26, 11/21/26, 12/5/26, 12/12/26, 1/2/27, 1/9/27, 1/23/27, 2/6/27, 2/20/27, 2/27/27, 3/13/27, 3/20/27, 4/3/27, 4/17/27 (9am-3pm for mock theory exam), 4/24/27 (9am-3pm for mock tasting exam)

Please note D3 includes an in-person exam.

You are automatically registered for the next in-person exam in Napa, CA upon D3 course enrollment, but you may change your exam date within your course Exam Options page. Click here to see all exam options.

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Next cohort: Oct 26, 2026 - Apr 24, 2027

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