| Business | Phone |
| Adex American Diamond Exch 1280 Whalley Ave, New Haven 6515 | (203) 389-0060 |
| Superior Exchange 1320 State St, New Haven 6511 | (203) 787-1444 |
| Sarco Jewelers 1580 Chapel St, New Haven 6511 | (203) 498-4664 |
| Savitt Jewelers 1064 Chapel St, New Haven 6510 | (203) 865-6121 |
| Concord 9 848 Chapel St, New Haven 6510 | (203) 562-0682 |
| Roma's Jewelry 57 Whalley Ave, New Haven 6511 | (203) 772-2692 |
| Derek Simpson Goldsmith 1094 Chapel St, New Haven 6510 | (203) 787-2498 |
| Perecman Jewelers 896 1/2 Whalley Ave, New Haven 6515 | (203) 389-1781 |
| Peter Indorf Inc 1022 Chapel St, New Haven 6510 | (203) 776-4833 |
| Endleman Gallery 1014 Chapel St, New Haven 6510 | (203) 776-2517 |
| Nim's 845 Chapel St, New Haven 6510 | (203) 497-9317 |
| Gilden's Jewelers 55 Whitney Ave, New Haven 6510 | (203) 562-0078 |
| Graffio Jewelers Llc 28 Orange St, New Haven 6510 | (203) 562-5800 |