| QINGDAO DIAMOND GROUP LIMITED | Private company limited by shares | Live |
| RICH DIAMOND GROUP LIMITED | Private company limited by shares | Live |
| FRANCE DIAMOND ROOM GROUP LIMITED | Private company limited by shares | Dissolved |
| SMART DIAMOND GROUP LIMITED | Private company limited by shares | Dissolved |
| SUNG DIAMOND GROUP LIMITED | | Live |
| YELLOW DIAMOND GROUP LIMITED | | Live |
| DIAMOND GROWTH COMPANY LIMITED | Private company limited by shares | Dissolved |
| GUANGZHOU DIAMOND APPLE FASHION LIMITED | Private company limited by shares | Live |
| HACO DIAMOND COMPANY LIMITED | Private company limited by shares | Dissolved |
| Halo Diamond Company Limited | Private company limited by shares | Live |
| DIAMOND HAND LIMITED | Private company limited by shares | Dissolved |
| HANG TAT DIAMOND COMPANY LIMITED | Private company limited by shares | Dissolved |
| HANG FAI (DIAMOND) COMPANY LIMITED | Private company limited by shares | Dissolved |
| WING HANG DIAMOND COMPANY LIMITED | Private company limited by shares | Live |
| WING HANG DIAMOND (ASIA) COMPANY LIMITED | Private company limited by shares | Live |
| DIAMOND HAPPY LIMITED | Private company limited by shares | Dissolved |
| HAPPY DIAMOND LIMITED | Private company limited by shares | Live |
| DIAMOND HARBOUR LIMITED | Private company limited by shares | Live |
| DIAMOND HARMONY LIMITED | Private company limited by shares | Live |
| DIAMOND HARVEST LIMITED | Private company limited by shares | Dissolved |
| DIAMOND HARVEST LIMITED | Private company limited by shares | Dissolved |
| DIAMOND HARVEST LIMITED | Private company limited by shares | Dissolved |
| HARVEST DIAMOND LIMITED | Private company limited by shares | Live |
| DIAMOND HARVEST LIMITED | Private company limited by shares | Live |
| DIAMOND HAZEL LIMITED | Private company limited by shares | Dissolved |
| DIAMOND HEALTH LIMITED | Private company limited by shares | Live |
| HEARTY DIAMOND LIMITED | Private company limited by shares | Live |
| Diamond Heaven Jewelry Limited | Private company limited by shares | Live |
| DIAMOND HEIGHTS LIMITED | Private company limited by shares | Dissolved |
| Heliodor Diamond Limited | Private company limited by shares | Live |
| HELIX DIAMOND COMPANY LIMITED | Private company limited by shares | Live |
| DIAMOND HERO COMPANY LIMITED | Private company limited by shares | Dissolved |
| DIAMOND HERO LIMITED | | Live |
| DIAMOND HERO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| AGP (Diamond Hill) Limited | Private company limited by shares | Live |
| DIAMOND HILL LIMITED | Private company limited by shares | Live |
| Diamond Hill Asia Limited | | Live |
| PO CHI LAM (DIAMOND HILL BRANCH) LIMITED | Private company limited by shares | Live |
| DIAMOND HILL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| DIAMOND HILL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| HINDEN DIAMOND LIMITED | Private company limited by shares | Live |
| HK-SA DIAMOND LIMITED | Private company limited by shares | Dissolved |
| DIAMOND HOLDING LIMITED | Private company limited by shares | Live |
| Diamond RC Holding Limited | Private company limited by shares | Live |
| DIAMOND ACE HOLDING LIMITED | Private company limited by shares | Live |
| GOLD DIAMOND HOLDING LIMITED | Private company limited by shares | Live |
| DIAMOND HOPE LIMITED | Private company limited by shares | Live |
| HOPEFUL DIAMOND LIMITED | Private company limited by shares | Live |
| HUGH DIAMOND LIMITED | Private company limited by shares | Dissolved |
| HUNDRED DIAMOND LIMITED | Private company limited by shares | Live |
| HYSNTI DIAMOND COMPANY LIMITED | Private company limited by shares | Live |
| DIAMOND IDEA ENTERPRISE LIMITED | Private company limited by shares | Live |
| Imagi Diamond Limited | Private company limited by shares | Dissolved |
| IMPERIAL DIAMOND COMPANY LIMITED | Private company limited by shares | Dissolved |
| IMPERIAL DIAMOND COMPANY LIMITED | Private company limited by shares | Live |
| DIAMOND IMPORTERS ASSOCIATION LIMITED -THE- | Company limited by guarantee | Live |
| INDIA DIAMOND LIMITED | Private company limited by shares | Dissolved |
| INDIA DIAMOND AGENCIES LIMITED | Private company limited by shares | Dissolved |
| INDIAN DIAMOND ASSOCIATION HK LIMITED | Company limited by guarantee | Dissolved |
| INDIGO DIAMOND LIMITED | Private company limited by shares | Live |
| Industrial Diamond Company Limited | Private company limited by shares | Live |
| POLY INDUSTRIAL DIAMOND DISTRIBUTORS LIMITED | Private company limited by shares | Dissolved |
| INDUSTRIAL DIAMOND ASSOCIATION OF HONG KONG LIMITED - THE - | Company limited by guarantee | Dissolved |
| INDUSTRIAL DIAMOND SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| INDUSTRIAL DIAMOND TRADING (ASIA) LIMITED | Private company limited by shares | Dissolved |
| HARRY INDUSTRIAL DIAMOND TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| DIAMOND INFINITY LIMITED | Private company limited by shares | Live |
| Infinity Diamond Limited | | Live |
| DIAMOND INNOVATIONS LIMITED | | Live |
| Integrity Diamond Limited | Private company limited by shares | Live |
| ACE OF DIAMOND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DIAMOND WAY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DIAMOND FUR INVESTMENT LIMITED | Private company limited by shares | Live |
| DIAMOND SUN INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| NEW DIAMOND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DIAMOND BAY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TOP DIAMOND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DIAMOND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| ALL DIAMOND INVESTMENT LIMITED | Private company limited by shares | Live |
| Hua Xia Diamond Investment Limited | Private company limited by shares | Live |
| San Diamond Investment Limited | Private company limited by shares | Dissolved |
| DIAMOND INVESTMENT LIMITED | Private company limited by shares | Live |
| DIAMOND SKY INVESTMENT LIMITED | Private company limited by shares | Live |
| ASIA DIAMOND INVESTMENT LIMITED | Private company limited by shares | Live |
| DIAMOND BASE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Best Diamond Way Investment Limited | Private company limited by shares | Live |
| DIAMOND BOND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DIAMOND BRONZE INVESTMENT LIMITED | Private company limited by shares | Live Commenced dormancy on 18-Aug-2009 |
| DIAMOND CAPITAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Diamond Investment Centre Limited | Private company limited by shares | Live |
| DIAMOND DRAGON INVESTMENT LIMITED | Private company limited by shares | Live |
| DIAMOND FAIR INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DIAMOND FORM INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DIAMOND FRIEND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| DIAMOND FULL INVESTMENT LIMITED | Private company limited by shares | Live |
| DIAMOND GLORY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GLORY DIAMOND INVESTMENT LIMITED | Private company limited by shares | Live |
| GOLD DIAMOND INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| GOLD DIAMOND INVESTMENT LIMITED | Private company limited by shares | Live |
| GRAND DIAMOND INVESTMENT LIMITED | Private company limited by shares | Live |