Robbins Bros. is like no other store when it comes to engagement rings. When Ben Robbins opened his first store in the 1920s, his goal was to offer the best selection of romantic gifts. Today, Robbins Bros is the World’s Biggest Engagement Ring Store?. Although the store is known for its fabulous selection of diamonds and rings, their knack for playing Cupid is just as famous. Once a prospective groom has found the perfect ring, they’ll help you plan the perfect proposal and even offer tips for the Big Day. The company has Cupids playing in 16 stores in California, Illinois, and Texas.