| Site | Category |
| Namano Diamonds | Diamond Dealers - Wholesalers |
| NAMDAR AVISHAY | Diamond Dealers - Wholesalers |
| Nemichand Bamalwa & sons | Diamond Dealers - Wholesalers |
| Nice Diamonds, Inc. | Diamond Dealers - Wholesalers |
| Nice Gems, Inc. | Diamond Dealers - Wholesalers |
| NiceIce.com | Diamond Dealers - Wholesalers |
| Nichin Impex Co. | Diamond Dealers - Wholesalers |
| Nilmani Jeweller | Diamond Dealers - Wholesalers |
| North Star Diamonds | Diamond Dealers - Wholesalers |
| Nouriely | Diamond Dealers - Wholesalers |
| Nouv International Co.,Ltd | Diamond Dealers - Wholesalers |
| Nova Diamonds | Diamond Dealers - Wholesalers |
| Nu Age Technologies | Diamond Dealers - Wholesalers |
| N/A | Education |
| National Gemstone | Gemstone Dealers |
| Nidor Jewellery | Jewelry Manufacturers |
| National Jeweler | Jewelry Publications |
| National Pawnbroker | Jewelry Publications |
| N. Bloom & Son | Jewelry Retailers |
| Nash Jewellers | Jewelry Retailers |
| Nathan Malnekoff & Sons Jewelers | Jewelry Retailers |
| National Jewelry Exchange | Jewelry Retailers |
| Nature's Fantasy | Jewelry Retailers |
| Neiman Marcus | Jewelry Retailers |
| Nemichand Bamalwa & Sons | Jewelry Retailers |
|