Theorem Vineyards

Thank you Sasha for an amazing experience and a great tasting! We will be back!

Spectacular in every sense! Gorgeous vineyards, knowledgeable, friendly and most interesting stories told by our incredible host! Must experience this at least once in your life!

Some of the best hospitality we’ve ever experienced

Incredible winery and experience. We had a small snafu with our reservations but Scott saved the day. The wine was great. The view and grounds were incredible. The staff were very accommodating. 10/10 recommend. Thank you!!

Gorgeous location, looking forward to going back soon.

The gorgeous vistas, intimate service and spectacular wines makes this a Must Visit. We have been to many winery’s around the world and this is at the top of our lists!! Don’t miss out!

Scott did a excellent job of explaining the history of this winery.... he was very knowledgeable and went beyond our expectations to explain the different wines and processes necessary to create the exceptional varieties of wine produced at Theorem.It was not just”wine tasting” but an experience of a couple’s dream come true.

Hands down our favorite stop of the trip. The team was so welcoming and the attention to detail for the tasting was impeccable. Can’t wait to come back

Absolutely fantastic! Wines, service, food, view - hard to beat any of these in Napa and impossible to match them all in the same location. If you have a chance to visit, definitely go.

Fantastic hospitality, service and wines. Scott generously showed us around the entire facility and answered all of our questions. Cannot wait to come back!

We love winetasting, and this was one of the best experiences we have ever had. Great wine, a very personable and knowledgeable wine educator, and amazing property. A top notch tasting experience!

Beautiful winery and estate in Diamond Mountain near the town of Calistoga. We had an amazing experience on a perfect summer day with Scott giving us a wonderful tour and tasting experience throughout the property.This was topped of by an incredible four course lunch and wine pairing on the grounds presented by Chef Josh Mitchell and Scott Allen from Napa Valley Heritage Catering. Everything and every touch was beyond expectations, without pretense and in a nurturing and genuine manner that encouraged us to relax, enjoy and drink in the experience with them as our guides. A wide variety and generous pouring of wines to taste, pair, and just enjoy made it a wonderful experience for our entire group during our first of what will be many visits to Theorem Winery!

Don’t typically leave reviews but this place deserves 5+ stars. Beautiful Diamond Mtn Estate with gorgeous decor throughout their winemaking facility and tasting room. The Merlot was excellent, but the Hawks Prey and Voir Dire Cabs left the lasting impression. The young and old vine cabs, respectively, were perfect compliments to each other, as the 2017 HP is showing tremendous early integration, and the 2013 VD exhibits all the qualities of amazing ageability. The only thing better than the wines was Scott’s generous hospitality. Looking forward to experiencing their Moon Mtn reds starting with the 2018 vintage. Eager to share the Theorem secret with other wine lovers back home. A must experience.

Fantastic grounds, incredible wines, Great Folks!

Amazing winery! Fabulous tasting room! One of the best Diamond Mountain has to offer. Highly recommend!!!