Contact Contact Us Use this form to send Black Diamond Brazilian Jiu-Jitsu an email message. First Name* Last Name* Email* Phone*MessagePhoneThis field is for validation purposes and should be left unchanged. Δ Address 1445 S Meadows Pkwy Ste 209 Reno NV 89521-5863 Phone 775-420-2662 Membership For convenience, students may wish to complete our registration form before arriving to attend class: Black Diamond Student Membership Form (PDF).