| Business | Phone |
| A Koo & Co 48 W 48th St, New York 10036 | (212) 768-0062 |
| Astro Gallery Of Gems 185 Madison Ave, New York 10016 | (212) 889-9000 |
| B J Lapidary 50 W 47th St # 205, New York 10036 | (212) 391-8367 |
| Leonard J Garriti 86 Bowery, New York 10013 | (212) 966-3993 |
| Gem Lapidary 66 W 47th St, New York 10036 | (212) 764-4511 |
| Toosoon Lapidary 2 W 47th St # 501, New York 10036 | (212) 382-0913 |
| Vivid Lapidary 31 W 47th St # 205, New York 10036 | (212) 730-6764 |
| Lux Gem Corp 441 Lexington Ave # 705, New York 10017 | (212) 725-0095 |
| Paramount Gems 55 W 45th St # 5, New York 10036 | (212) 730-2253 |
| National Gems 25 W 45th St # 701, New York 10036 | (212) 921-1082 |