| Site | Category |
| Parisi Jewelry Brokers | Appraisers |
| Phillips Auctioneers | Auctions |
| paymentsource.com | Credit Institutions |
| Protea Diamonds | Diamond Cutters |
| Pancis Gems Inc | Diamond Dealers - Wholesalers |
| Pasadena Pawn Shop | Diamond Dealers - Wholesalers |
| PDD | Diamond Dealers - Wholesalers |
| Pleasure Diamonds L.L.C. | Diamond Dealers - Wholesalers |
| Poddar & Co. | Diamond Dealers - Wholesalers |
| Prabhakar Djewels Pvt. Ltd. | Diamond Dealers - Wholesalers |
| Prakash Gems | Diamond Dealers - Wholesalers |
| Prime Diam Co. | Diamond Dealers - Wholesalers |
| Priti Gems Co.,Ltd. | Diamond Dealers - Wholesalers |
| Protea Diamonds | Diamond Dealers - Wholesalers |
| Pure Diamonds Trading | Diamond Dealers - Wholesalers |
| Padma Gems | Diamond Manufacturers |
| Pansuriya Impex | Diamond Manufacturers |
| Paul Berg oHG | Diamond Manufacturers |
| PODDAR & CO. | Diamond Manufacturers |
| Poddar Diamonds | Diamond Manufacturers |
| Poddar Diamonds | Diamond Manufacturers |
| Prabhakar Djewels Pvt. Ltd. | Diamond Manufacturers |
| Precigem | Diamond Manufacturers |
| Pan Asia Mining Corp | Diamond Mining |
| Pele Mountain Resources Inc. | Diamond Mining |
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