Eser Diamond Hotel & Convention Center; Is ready to host all kinds of your business meetings and corporate trainings with its 16 day-lits meeting rooms and 1160 m2 show rooms.
| MEETING ROOMS | m2 | Width | Lenght | Height | Banquette | Class | Theatre | Formation U |
| HÜRREM SULTAN | 462 | 14 | 33 | 3.2 | 250 | 250 | 350 | 50 |
| FATİH SULTAN MEHMET | 462 | 14 | 33 | 4.0 | 250 | 250 | 350 | 50 |
| AYASOFYA | 391 | 17 | 23 | 3.2 | 200 | 150 | 260 | 50 |
| DOLMABAHÇE | 275 | 11 | 25 | 3.2 | 180 | 120 | 260 | 50 |
| TOPKAPI | 275 | 11 | 25 | 3.2 | 180 | 120 | 260 | 50 |
| ÜSKÜDAR | 160 | 8 | 20 | 3.2 | 100 | 80 | 140 | 50 |
| GALATA | 64 | 8 | 8 | 3.2 | 40 | 30 | 45 | 25 |
| EMİRGAN | 49 | 7 | 7 | 3.2 | 40 | 30 | 45 | 25 |
| BOĞAZİÇİ | 49 | 7 | 7 | 3.2 | 40 | 30 | 45 | 25 |
| YEREBATAN | 56 | 7 | 8 | 3.2 | 40 | 30 | 45 | 25 |
| RUMELİ | 56 | 7 | 8 | 3.2 | 40 | 30 | 45 | 25 |
| KIZ KULESİ | 56 | 7 | 8 | 3.2 | 40 | 30 | 45 | 25 |
| SULTANAHMET | 56 | 7 | 8 | 3.2 | 30 | 30 | 45 | 25 |
| PERA | 116 | 5.5 | 21 | 3.2 | 100 | 80 | 130 | 50 |
| ORTAKÖY | 116 | 5.5 | 21 | 3.2 | 100 | 80 | 130 | 50 |
| SHOWROOM | 1160 | 40 | 29 | 3.2 | 700 | 600 | 800 | - |
| BALLROOM | 644 | 23 | 28 | 4.0 | 500 | 250 | 400 | - |
| OPEN ORGANISATION AREA | - | - | - | - | 1250 | - | - | - |