OWLB Diamonds
| Nos. | OWLB Diamonds |
| TOPTTLB | First Quality in OWLB |
| TLB | Second Quality in OWLB |
| OWTTLB | Third Quality in OWLB |
| OWTLB | Fourth Quality in OWLB |
| TTLB(N) | Fifth Quality in OWLB Natts |
| TLB(N) | First Quality in OWLB Natts |
| * AVAILABLE SIZE --- +000 - 6.5 | |