- Jewelers of America
 - National association for retail jewellers. - New York Diamond Exchange
- Offers information on wedding and engagement jewellery.
- Kassoy
- Supplier of scales, loupes, testers, cleaners, and gemological equipment.
- Rapaport Information Services
- Site from Rapaport Information Services, publishers of the Rapaport Diamond Report. Site includes diamond and jewellery trade and consumer information and chat.
- OTC International, Ltd.
- Wholesaler, importer and manufacturer of gold, silver, cameo, semi-precious gemstone, and diamond accent jewellery, as well as collectible giftware and watches.
- American Diamond Wholesalers
- Family-owned business specialising in supplying nationally known chains and speciality stores. All sales certified with GIA or IGI certificate.
- Suna Bros.
- Manufactures gold, diamond, and platinum jewellery.
- J.B. Star
- Designs and manufacturers wedding and engagement jewellery of gold, platinum, diamonds, saphires and rubies.
- Rudolf Erdel Platinum
- Offers designer jewellery in platinum.
- Provident Loan Society of New York, The
- Not-for-profit lending organisation providing funds to individuals upon pledge of diamond and gold jewellery.
- Magic Novelty Co. Inc.
- Manufacturer and distributor of jewellery findings.
- Alpha Watch Company
- manufacturer and importer of wholesale watches for retailers and vendors, including novelty items and customised logos for promotions.
- Jewelry Information Center
- G&W Castings Inc.
- Precision silver, platinum and gold casting for the jewellery trade.
- First Class Imports
- Supplying 14K and 18K gold designs.
- Leshem Diamond Services
- Wholesale company.
- Quality Casting Inc.
- Provides contract casting for the jewellery manufacturing community.
- Robert Rose Jewelry
- Designs and manufactures jewellery for department and speciality stores.
- DRS, Inc.
- Findings and tools for the jeweller and watchmaker including wire, solder, settings, scales, diamond and gold testers, and cleaning and polishing machines.
- David Birnbaum - Rockefeller Plaza
- Private jewellery salon.
- Bayco Gem Corp
- Designs and manufactures jewellery pieces for retailers.
- Variety Gem
- Offers traditional bridal and fashion jewellery in diamond, emerald, ruby, sapphire, and semi-precious stones.
- Carolina
- Offers a range of hand-crafted necklaces, bracelets, earrings, and rings.
- Sterling Forest
- New York wholesaler of sterling silver and stainless steel jewellery, including bracelets, necklaces, pendants, and earrings. Imports from Italy, Indonesia, India, Mexico, and Thailand.
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