Mavilo: Jewelry Store Tampa, FL, Engagement Rings, Diamonds, Jewelry loose diamonds, diamond, bridal jewelry, fine jewelry, engagement rings, diamond wholesalers Discover the perfect engagement rings, GIA diamonds, wedding rings and fine jewelry with online pricing in a local Tampa showroom. We are experts in custom engagement rings and jewelry. Let us help you custom design that special engagement ring. Mavilo has one of the largest GIA diamond selections at unbeatable prices!