| Business | Phone |
| D Eangelis Diamond 4411 Botanical Place Cir, Naples 34112 | (239) 774-9923 |
| Diamond Lites Naples 2408 Linwood Ave, Naples 34112 | (239) 417-2223 |
| Gemological Services-Naples Naples 34108 | (239) 514-3816 |
| Naples Diamond Svc 660 9th St N, Naples 34102 | (239) 403-1055 |