Say Hello.The credit for the most expensive champagne in the world goes to 2013 Gout de Diamants, Taste of Diamonds. At a price tag of 2.07 million dollars. 212 7th St SE, Washington, DC 20003, USA admin@goûtdediamants.com 753 456-000000 Ask Your Queries Please enable JavaScript in your browser to complete this form.Email *Subject *Message *EmailSEND MESSAGE