How do i contact diamond insurance? Diamond offers a number of ways to contact them that are in the following: Email is one of an online option to contact Diamond Insurance. As some people prefer to contact through email so diamond insurance also provided this way. You can also contact them for general enquiries Go here.How do i contact diamond after hours? During Business Hours: Choose from a list of automated options or connect with our Call Center for personal assistance. After Hours Assistance: Diamond offers after-hours support. A live person is available to answer questions and assist members, or in certain cases, a Diamond representative will follow-up the next business day.Who do i contact for questions about my diamond now project? Questions about your Diamond ® NOW™ project? Contact our Customer Service at 1-844-614-0002. Cabinets & Custom Fit VanitiesHow do i find my delta diamond phone number? I was able to get the Diamond number from Delta - I don't see a reason for the number to be secret, and publishing it can only help other Diamond members - the phone number is 1-877-220-6888. This phone number is on the back of your DM card. It's been on the back of the card for the 13 years I've flown with Delta.